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Failed to open port /dev/ttyUSB0

Failed to open port /dev/ttyUSB0. Please make sure the Create cable is plugged into the computer.

this is the message I get when I try to run roslaunch turtlebot_bringup minimal.launch

The cable is plugged in to the computer, but it can't seem to find it. Any advice? Thanks!

Failed to open port /dev/ttyUSB0

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer. 

computer.

this is the message I get when I try to run run

roslaunch turtlebot_bringup minimal.launch

The cable is plugged in to the computer, but it can't seem to find it. Any advice? Thanks!

Failed to open port /dev/ttyUSB0

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

this is the message I get when I try to run

roslaunch turtlebot_bringup minimal.launch

The cable is plugged in to the computer, but it can't seem to find it. Any advice? Thanks!


hyness@turtlebot:~$ roslaunch turtlebot_bringup minimal.launch
... logging to /home/hyness/.ros/log/e48df4ec-e303-11e1-b4b3-94dbc99cb3ba/roslaunch-turtlebot-28662.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://192.168.1.101:53917/

SUMMARY
========

PARAMETERS
 * /app_manager/interface_master
 * /diagnostic_aggregator/analyzers/digital_io/path
 * /diagnostic_aggregator/analyzers/digital_io/startswith
 * /diagnostic_aggregator/analyzers/digital_io/timeout
 * /diagnostic_aggregator/analyzers/digital_io/type
 * /diagnostic_aggregator/analyzers/mode/path
 * /diagnostic_aggregator/analyzers/mode/startswith
 * /diagnostic_aggregator/analyzers/mode/timeout
 * /diagnostic_aggregator/analyzers/mode/type
 * /diagnostic_aggregator/analyzers/nodes/contains
 * /diagnostic_aggregator/analyzers/nodes/path
 * /diagnostic_aggregator/analyzers/nodes/timeout
 * /diagnostic_aggregator/analyzers/nodes/type
 * /diagnostic_aggregator/analyzers/power/path
 * /diagnostic_aggregator/analyzers/power/startswith
 * /diagnostic_aggregator/analyzers/power/timeout
 * /diagnostic_aggregator/analyzers/power/type
 * /diagnostic_aggregator/analyzers/sensors/path
 * /diagnostic_aggregator/analyzers/sensors/startswith
 * /diagnostic_aggregator/analyzers/sensors/timeout
 * /diagnostic_aggregator/analyzers/sensors/type
 * /diagnostic_aggregator/base_path
 * /diagnostic_aggregator/pub_rate
 * /robot/name
 * /robot/type
 * /robot_description
 * /robot_pose_ekf/freq
 * /robot_pose_ekf/imu_used
 * /robot_pose_ekf/odom_used
 * /robot_pose_ekf/output_frame
 * /robot_pose_ekf/publish_tf
 * /robot_pose_ekf/sensor_timeout
 * /robot_pose_ekf/vo_used
 * /robot_state_publisher/publish_frequency
 * /rosdistro
 * /rosversion
 * /turtlebot_laptop_battery/acpi_path
 * /turtlebot_node/bonus
 * /turtlebot_node/update_rate
 * /use_sim_time

NODES
  /
    app_manager (app_manager/app_manager)
    appmaster (app_manager/appmaster)
    diagnostic_aggregator (diagnostic_aggregator/aggregator_node)
    robot_pose_ekf (robot_pose_ekf/robot_pose_ekf)
    robot_state_publisher (robot_state_publisher/state_publisher)
    turtlebot_laptop_battery (turtlebot_node/laptop_battery.py)
    turtlebot_node (turtlebot_node/turtlebot_node.py)

ROS_MASTER_URI=http://192.168.1.101:11311

core service [/rosout] found
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[appmaster-1]: started with pid [28714]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[app_manager-2]: started with pid [28715]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_node-3]: started with pid [28717]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_laptop_battery-4]: started with pid [28721]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_state_publisher-5]: started with pid [28731]
/opt/ros/fuerte/stacks/turtlebot/turtlebot_node/nodes/turtlebot_node.py:54: UserWarning: roslib.rosenv is deprecated, please use rospkg or rosgraph.rosenv
  import roslib.rosenv
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[diagnostic_aggregator-6]: started with pid [28735]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_pose_ekf-7]: started with pid [28767]
turtlebot_apps.installed
loading installation data for [turtlebot_apps.installed]
[INFO] [WallTime: 1344878483.388894] serial port: /dev/ttyUSB0
[INFO] [WallTime: 1344878483.390361] update_rate: 30.0
[INFO] [WallTime: 1344878483.391525] drive mode: twist
[INFO] [WallTime: 1344878483.392730] has gyro: True
[INFO] [WallTime: 1344878483.524643] self.gyro_measurement_range 150.000000
[INFO] [WallTime: 1344878483.525284] self.gyro_scale_correction 1.350000
[INFO] [WallTime: 1344878483.606566] Starting app manager for turtlebot
[INFO] [WallTime: 1344878483.649391] Waiting for foreign master [http://localhost:11312] to come up...
[INFO] [WallTime: 1344878483.661190] Foreign master is available
[INFO] [WallTime: 1344878483.705600] Registering (/turtlebot/app_list,http://192.168.1.101:36448/) on master http://localhost:11312
[INFO] [WallTime: 1344878483.722560] Registering (/turtlebot/application/app_status,http://192.168.1.101:36448/) on master http://localhost:11312
turtlebot_apps.installed
[INFO] [WallTime: 1344878483.738635] Registering service (/turtlebot/list_apps,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.753652] Registering service (/turtlebot/start_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.768299] Registering service (/turtlebot/stop_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[ERROR] [WallTime: 1344878486.591044] Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer. 

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

Failed to open port /dev/ttyUSB0

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

this is the message I get when I try to run

roslaunch turtlebot_bringup minimal.launch

The cable is plugged in to the computer, but it can't seem to find it. Any advice? Thanks!


hyness@turtlebot:~$ roslaunch turtlebot_bringup minimal.launch
... logging to /home/hyness/.ros/log/e48df4ec-e303-11e1-b4b3-94dbc99cb3ba/roslaunch-turtlebot-28662.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://192.168.1.101:53917/

SUMMARY
========

PARAMETERS
 * /app_manager/interface_master
 * /diagnostic_aggregator/analyzers/digital_io/path
 * /diagnostic_aggregator/analyzers/digital_io/startswith
 * /diagnostic_aggregator/analyzers/digital_io/timeout
 * /diagnostic_aggregator/analyzers/digital_io/type
 * /diagnostic_aggregator/analyzers/mode/path
 * /diagnostic_aggregator/analyzers/mode/startswith
 * /diagnostic_aggregator/analyzers/mode/timeout
 * /diagnostic_aggregator/analyzers/mode/type
 * /diagnostic_aggregator/analyzers/nodes/contains
 * /diagnostic_aggregator/analyzers/nodes/path
 * /diagnostic_aggregator/analyzers/nodes/timeout
 * /diagnostic_aggregator/analyzers/nodes/type
 * /diagnostic_aggregator/analyzers/power/path
 * /diagnostic_aggregator/analyzers/power/startswith
 * /diagnostic_aggregator/analyzers/power/timeout
 * /diagnostic_aggregator/analyzers/power/type
 * /diagnostic_aggregator/analyzers/sensors/path
 * /diagnostic_aggregator/analyzers/sensors/startswith
 * /diagnostic_aggregator/analyzers/sensors/timeout
 * /diagnostic_aggregator/analyzers/sensors/type
 * /diagnostic_aggregator/base_path
 * /diagnostic_aggregator/pub_rate
 * /robot/name
 * /robot/type
 * /robot_description
 * /robot_pose_ekf/freq
 * /robot_pose_ekf/imu_used
 * /robot_pose_ekf/odom_used
 * /robot_pose_ekf/output_frame
 * /robot_pose_ekf/publish_tf
 * /robot_pose_ekf/sensor_timeout
 * /robot_pose_ekf/vo_used
 * /robot_state_publisher/publish_frequency
 * /rosdistro
 * /rosversion
 * /turtlebot_laptop_battery/acpi_path
 * /turtlebot_node/bonus
 * /turtlebot_node/update_rate
 * /use_sim_time

NODES
  /
    app_manager (app_manager/app_manager)
    appmaster (app_manager/appmaster)
    diagnostic_aggregator (diagnostic_aggregator/aggregator_node)
    robot_pose_ekf (robot_pose_ekf/robot_pose_ekf)
    robot_state_publisher (robot_state_publisher/state_publisher)
    turtlebot_laptop_battery (turtlebot_node/laptop_battery.py)
    turtlebot_node (turtlebot_node/turtlebot_node.py)

ROS_MASTER_URI=http://192.168.1.101:11311

core service [/rosout] found
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[appmaster-1]: started with pid [28714]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[app_manager-2]: started with pid [28715]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_node-3]: started with pid [28717]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_laptop_battery-4]: started with pid [28721]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_state_publisher-5]: started with pid [28731]
/opt/ros/fuerte/stacks/turtlebot/turtlebot_node/nodes/turtlebot_node.py:54: UserWarning: roslib.rosenv is deprecated, please use rospkg or rosgraph.rosenv
  import roslib.rosenv
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[diagnostic_aggregator-6]: started with pid [28735]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_pose_ekf-7]: started with pid [28767]
turtlebot_apps.installed
loading installation data for [turtlebot_apps.installed]
[INFO] [WallTime: 1344878483.388894] serial port: /dev/ttyUSB0
[INFO] [WallTime: 1344878483.390361] update_rate: 30.0
[INFO] [WallTime: 1344878483.391525] drive mode: twist
[INFO] [WallTime: 1344878483.392730] has gyro: True
[INFO] [WallTime: 1344878483.524643] self.gyro_measurement_range 150.000000
[INFO] [WallTime: 1344878483.525284] self.gyro_scale_correction 1.350000
[INFO] [WallTime: 1344878483.606566] Starting app manager for turtlebot
[INFO] [WallTime: 1344878483.649391] Waiting for foreign master [http://localhost:11312] to come up...
[INFO] [WallTime: 1344878483.661190] Foreign master is available
[INFO] [WallTime: 1344878483.705600] Registering (/turtlebot/app_list,http://192.168.1.101:36448/) on master http://localhost:11312
[INFO] [WallTime: 1344878483.722560] Registering (/turtlebot/application/app_status,http://192.168.1.101:36448/) on master http://localhost:11312
turtlebot_apps.installed
[INFO] [WallTime: 1344878483.738635] Registering service (/turtlebot/list_apps,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.753652] Registering service (/turtlebot/start_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.768299] Registering service (/turtlebot/stop_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[ERROR] [WallTime: 1344878486.591044] Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer. 

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

EDIT:

hyness@turtlebot:~$ dmesg | grep ttyUSB
[   19.480585] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[264451.156468] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[264453.577268] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[268339.617586] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[268349.513718] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0
[339739.939792] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339742.652429] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339762.109603] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339770.306100] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339794.598883] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339813.176481] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339844.747131] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339893.004286] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[340327.577148] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[340329.547441] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0

hyness@turtlebot:~$ ls /dev/ttyUSB*
/dev/ttyUSB0

Failed to open port /dev/ttyUSB0

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

this is the message I get when I try to run

roslaunch turtlebot_bringup minimal.launch

The cable is plugged in to the computer, but it can't seem to find it. Any advice? Thanks!


hyness@turtlebot:~$ roslaunch turtlebot_bringup minimal.launch
... logging to /home/hyness/.ros/log/e48df4ec-e303-11e1-b4b3-94dbc99cb3ba/roslaunch-turtlebot-28662.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://192.168.1.101:53917/

SUMMARY
========

PARAMETERS
 * /app_manager/interface_master
 * /diagnostic_aggregator/analyzers/digital_io/path
 * /diagnostic_aggregator/analyzers/digital_io/startswith
 * /diagnostic_aggregator/analyzers/digital_io/timeout
 * /diagnostic_aggregator/analyzers/digital_io/type
 * /diagnostic_aggregator/analyzers/mode/path
 * /diagnostic_aggregator/analyzers/mode/startswith
 * /diagnostic_aggregator/analyzers/mode/timeout
 * /diagnostic_aggregator/analyzers/mode/type
 * /diagnostic_aggregator/analyzers/nodes/contains
 * /diagnostic_aggregator/analyzers/nodes/path
 * /diagnostic_aggregator/analyzers/nodes/timeout
 * /diagnostic_aggregator/analyzers/nodes/type
 * /diagnostic_aggregator/analyzers/power/path
 * /diagnostic_aggregator/analyzers/power/startswith
 * /diagnostic_aggregator/analyzers/power/timeout
 * /diagnostic_aggregator/analyzers/power/type
 * /diagnostic_aggregator/analyzers/sensors/path
 * /diagnostic_aggregator/analyzers/sensors/startswith
 * /diagnostic_aggregator/analyzers/sensors/timeout
 * /diagnostic_aggregator/analyzers/sensors/type
 * /diagnostic_aggregator/base_path
 * /diagnostic_aggregator/pub_rate
 * /robot/name
 * /robot/type
 * /robot_description
 * /robot_pose_ekf/freq
 * /robot_pose_ekf/imu_used
 * /robot_pose_ekf/odom_used
 * /robot_pose_ekf/output_frame
 * /robot_pose_ekf/publish_tf
 * /robot_pose_ekf/sensor_timeout
 * /robot_pose_ekf/vo_used
 * /robot_state_publisher/publish_frequency
 * /rosdistro
 * /rosversion
 * /turtlebot_laptop_battery/acpi_path
 * /turtlebot_node/bonus
 * /turtlebot_node/update_rate
 * /use_sim_time

NODES
  /
    app_manager (app_manager/app_manager)
    appmaster (app_manager/appmaster)
    diagnostic_aggregator (diagnostic_aggregator/aggregator_node)
    robot_pose_ekf (robot_pose_ekf/robot_pose_ekf)
    robot_state_publisher (robot_state_publisher/state_publisher)
    turtlebot_laptop_battery (turtlebot_node/laptop_battery.py)
    turtlebot_node (turtlebot_node/turtlebot_node.py)

ROS_MASTER_URI=http://192.168.1.101:11311

core service [/rosout] found
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[appmaster-1]: started with pid [28714]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[app_manager-2]: started with pid [28715]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_node-3]: started with pid [28717]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_laptop_battery-4]: started with pid [28721]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_state_publisher-5]: started with pid [28731]
/opt/ros/fuerte/stacks/turtlebot/turtlebot_node/nodes/turtlebot_node.py:54: UserWarning: roslib.rosenv is deprecated, please use rospkg or rosgraph.rosenv
  import roslib.rosenv
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[diagnostic_aggregator-6]: started with pid [28735]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_pose_ekf-7]: started with pid [28767]
turtlebot_apps.installed
loading installation data for [turtlebot_apps.installed]
[INFO] [WallTime: 1344878483.388894] serial port: /dev/ttyUSB0
[INFO] [WallTime: 1344878483.390361] update_rate: 30.0
[INFO] [WallTime: 1344878483.391525] drive mode: twist
[INFO] [WallTime: 1344878483.392730] has gyro: True
[INFO] [WallTime: 1344878483.524643] self.gyro_measurement_range 150.000000
[INFO] [WallTime: 1344878483.525284] self.gyro_scale_correction 1.350000
[INFO] [WallTime: 1344878483.606566] Starting app manager for turtlebot
[INFO] [WallTime: 1344878483.649391] Waiting for foreign master [http://localhost:11312] to come up...
[INFO] [WallTime: 1344878483.661190] Foreign master is available
[INFO] [WallTime: 1344878483.705600] Registering (/turtlebot/app_list,http://192.168.1.101:36448/) on master http://localhost:11312
[INFO] [WallTime: 1344878483.722560] Registering (/turtlebot/application/app_status,http://192.168.1.101:36448/) on master http://localhost:11312
turtlebot_apps.installed
[INFO] [WallTime: 1344878483.738635] Registering service (/turtlebot/list_apps,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.753652] Registering service (/turtlebot/start_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.768299] Registering service (/turtlebot/stop_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[ERROR] [WallTime: 1344878486.591044] Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer. 

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

EDIT:

hyness@turtlebot:~$ dmesg | grep ttyUSB
[   19.480585] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[264451.156468] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[264453.577268] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[268339.617586] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[268349.513718] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0
[339739.939792] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339742.652429] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339762.109603] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339770.306100] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339794.598883] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339813.176481] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339844.747131] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339893.004286] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[340327.577148] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[340329.547441] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0

hyness@turtlebot:~$ ls /dev/ttyUSB*
/dev/ttyUSB0

There were too many results, and some of them were cut off; here is what I can see

[   19.518791] usbcore: registered new interface driver uvcvideo
[   19.518796] USB Video Class driver (1.1.1)
[   21.106684] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
[   21.106902] radeon 0000:00:01.0: WB enabled
[   21.123507] [drm] ring test succeeded in 1 usecs
[   21.123815] [drm] radeon: ib pool ready.
[   21.123991] [drm] ib test succeeded in 0 usecs
[   21.124725] [drm] Radeon Display Connectors
[   21.124729] [drm] Connector 0:
[   21.124732] [drm]   LVDS
[   21.124735] [drm]   HPD1
[   21.124739] [drm]   DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c
[   21.124742] [drm]   Encoders:
[   21.124745] [drm]     LCD1: INTERNAL_UNIPHY
[   21.124748] [drm] Connector 1:
[   21.124750] [drm]   HDMI-A
[   21.124753] [drm]   HPD2
[   21.124756] [drm]   DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c
[   21.124759] [drm]   Encoders:
[   21.124762] [drm]     DFP1: INTERNAL_UNIPHY
[   21.124764] [drm] Connector 2:
[   21.124766] [drm]   VGA
[   21.124770] [drm]   DDC: 0x64d8 0x64d8 0x64dc 0x64dc 0x64e0 0x64e0 0x64e4 0x64e4
[   21.124773] [drm]   Encoders:
[   21.124776] [drm]     CRT1: INTERNAL_KLDSCP_DAC1
[   21.124822] [drm] Internal thermal controller without fan control
[   21.124924] [drm] radeon: power management initialized
[   21.417147] type=1400 audit(1344614080.668:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=752 comm="apparmor_parser"
[   21.417400] type=1400 audit(1344614080.668:3): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=848 comm="apparmor_parser"
[   21.418053] type=1400 audit(1344614080.668:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=752 comm="apparmor_parser"
[   21.418328] type=1400 audit(1344614080.668:5): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=848 comm="apparmor_parser"
[   21.418579] type=1400 audit(1344614080.668:6): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=752 comm="apparmor_parser"
[   21.418858] type=1400 audit(1344614080.668:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=848 comm="apparmor_parser"
[   21.420116] type=1400 audit(1344614080.672:8): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=786 comm="apparmor_parser"
[   21.421332] type=1400 audit(1344614080.672:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=786 comm="apparmor_parser"
[   21.422023] type=1400 audit(1344614080.672:10): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=786 comm="apparmor_parser"
[   21.595083] [drm] fb mappable at 0xC0142000
[   21.595089] [drm] vram apper at 0xC0000000
[   21.595092] [drm] size 4325376
[   21.595095] [drm] fb depth is 24
[   21.595097] [drm]    pitch is 5632
[   21.595517] fbcon: radeondrmfb (fb0) is primary device
[   21.595717] Console: switching to colour frame buffer device 170x48
[   21.595769] fb0: radeondrmfb frame buffer device
[   21.595772] drm: registered panic notifier
[   21.595787] [drm] Initialized radeon 2.12.0 20080528 for 0000:00:01.0 on minor 0
[   21.595946] snd_hda_intel 0000:00:01.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[   21.596113] snd_hda_intel 0000:00:01.1: irq 45 for MSI/MSI-X
[   21.596155] snd_hda_intel 0000:00:01.1: setting latency timer to 64
[   22.166950] HDMI status: Codec=0 Pin=3 Presence_Detect=0 ELD_Valid=0
[   22.167484] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.1/sound/card0/input8
[   22.168917] snd_hda_intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   22.667532] input: HDA ATI SB Mic as /devices/pci0000:00/0000:00:14.2/sound/card1/input9
[   22.667729] input: HDA ATI SB Headphone as /devices/pci0000:00/0000:00:14.2/sound/card1/input10
[   24.208539] ppdev: user-space parallel port driver
[   24.751053] Bluetooth: RFCOMM TTY layer initialized
[   24.751066] Bluetooth: RFCOMM socket layer initialized
[   24.751070] Bluetooth: RFCOMM ver 1.11
[   25.056329] type=1400 audit(1344614084.308:11): apparmor="STATUS" operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" pid=955 comm="apparmor_parser"
[   25.374570] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   25.374578] Bluetooth: BNEP filters: protocol multicast
[   25.664430] init: failsafe main process (914) killed by TERM signal
[   29.180643] audit_printk_skb: 3 callbacks suppressed
[   29.180650] type=1400 audit(1344614088.432:13): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1061 comm="apparmor_parser"
[   29.181594] type=1400 audit(1344614088.432:14): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1061 comm="apparmor_parser"
[   29.182122] type=1400 audit(1344614088.432:15): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1061 comm="apparmor_parser"
[   29.301942] type=1400 audit(1344614088.552:16): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" pid=1060 comm="apparmor_parser"
[   29.338987] r8169 0000:06:00.0: eth0: link down
[   29.339870] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   29.340680] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   29.379476] type=1400 audit(1344614088.628:17): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=1064 comm="apparmor_parser"
[   29.380700] type=1400 audit(1344614088.632:18): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/telepathy-*" pid=1064 comm="apparmor_parser"
[   29.392618] type=1400 audit(1344614088.644:19): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=1066 comm="apparmor_parser"
[   29.393710] type=1400 audit(1344614088.644:20): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=1066 comm="apparmor_parser"
[   30.198607] type=1400 audit(1344614089.448:21): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince" pid=1062 comm="apparmor_parser"
[   30.209567] type=1400 audit(1344614089.460:22): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince//launchpad_integration" pid=1062 comm="apparmor_parser"
[   38.044681] input: Sony Playstation SixAxis/DS3 as /devices/virtual/input/input11
[   39.950793] init: plymouth-stop pre-start process (1495) terminated with status 1
[   66.674852] audit_printk_skb: 21 callbacks suppressed
[   66.674859] type=1400 audit(1344614125.925:30): apparmor="DENIED" operation="open" parent=1 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=2028 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   93.632144] eth1: no IPv6 routers present
[ 1089.780340] init: turtlebot main process (10252) terminated with status 1
[ 1089.780479] init: turtlebot main process ended, respawning
[ 1089.914035] init: turtlebot main process (10275) terminated with status 1
[ 1089.914118] init: turtlebot main process ended, respawning
[ 1090.062557] init: turtlebot main process (10293) terminated with status 1
[ 1090.062692] init: turtlebot main process ended, respawning
[ 1090.216002] init: turtlebot main process (10311) terminated with status 1
[ 1090.216218] init: turtlebot main process ended, respawning
[ 1090.365281] init: turtlebot main process (10330) terminated with status 1
[ 1090.365376] init: turtlebot main process ended, respawning
[ 1090.505878] init: turtlebot main process (10349) terminated with status 1
[ 1090.506012] init: turtlebot main process ended, respawning
[ 1090.654396] init: turtlebot main process (10367) terminated with status 1
[ 1090.654522] init: turtlebot main process ended, respawning
[ 1090.806787] init: turtlebot main process (10386) terminated with status 1
[ 1090.806871] init: turtlebot main process ended, respawning
[ 1090.950699] init: turtlebot main process (10404) terminated with status 1
[ 1090.950777] init: turtlebot main process ended, respawning
[ 1091.095898] init: turtlebot main process (10422) terminated with status 1
[ 1091.096100] init: turtlebot main process ended, respawning
[ 1091.250507] init: turtlebot main process (10440) terminated with status 1
[ 1091.250590] init: turtlebot respawning too fast, stopped
[ 1093.583821] init: turtlebot main process (10477) terminated with status 1
[ 1093.583907] init: turtlebot main process ended, respawning
[ 1093.710527] init: turtlebot main process (10499) terminated with status 1
[ 1093.710610] init: turtlebot main process ended, respawning
[ 1093.860354] init: turtlebot main process (10518) terminated with status 1
[ 1093.860450] init: turtlebot main process ended, respawning
[ 1094.010746] init: turtlebot main process (10540) terminated with status 1
[ 1094.010828] init: turtlebot main process ended, respawning
[ 1094.156003] init: turtlebot main process (10558) terminated with status 1
[ 1094.156283] init: turtlebot main process ended, respawning
[ 1094.304175] init: turtlebot main process (10576) terminated with status 1
[ 1094.304255] init: turtlebot main process ended, respawning
[ 1094.447348] init: turtlebot main process (10595) terminated with status 1
[ 1094.447429] init: turtlebot main process ended, respawning
[ 1094.611998] init: turtlebot main process (10613) terminated with status 1
[ 1094.612211] init: turtlebot main process ended, respawning
[ 1094.761463] init: turtlebot main process (10635) terminated with status 1
[ 1094.761547] init: turtlebot main process ended, respawning
[ 1094.905125] init: turtlebot main process (10654) terminated with status 1
[ 1094.905208] init: turtlebot main process ended, respawning
[ 1095.047440] init: turtlebot main process (10672) terminated with status 1
[ 1095.047573] init: turtlebot respawning too fast, stopped
[ 1095.897909] init: turtlebot main process (10702) terminated with status 1
[ 1095.898205] init: turtlebot main process ended, respawning
[ 1096.051617] init: turtlebot main process (10724) terminated with status 1
[ 1096.051789] init: turtlebot main process ended, respawning
[ 1096.204070] init: turtlebot main process (10742) terminated with status 1
[ 1096.204210] init: turtlebot main process ended, respawning
[ 1096.354565] init: turtlebot main process (10761) terminated with status 1
[ 1096.354699] init: turtlebot main process ended, respawning
[ 1096.505661] init: turtlebot main process (10779) terminated with status 1
[ 1096.505760] init: turtlebot main process ended, respawning
[ 1096.649149] init: turtlebot main process (10797) terminated with status 1
[ 1096.649283] init: turtlebot main process ended, respawning
[ 1096.800127] init: turtlebot main process (10815) terminated with status 1
[ 1096.800214] init: turtlebot main process ended, respawning
[ 1096.951878] init: turtlebot main process (10834) terminated with status 1
[ 1096.951962] init: turtlebot main process ended, respawning
[ 1097.096739] init: turtlebot main process (10852) terminated with status 1
[ 1097.096821] init: turtlebot main process ended, respawning
[ 1097.250754] init: turtlebot main process (10870) terminated with status 1
[ 1097.250837] init: turtlebot main process ended, respawning
[ 1097.396069] init: turtlebot main process (10889) terminated with status 1
[ 1097.396209] init: turtlebot respawning too fast, stopped
[ 1097.639494] init: turtlebot main process (10911) terminated with status 1
[ 1097.639593] init: turtlebot main process ended, respawning
[ 1097.781413] init: turtlebot main process (10929) terminated with status 1
[ 1097.781491] init: turtlebot main process ended, respawning
[ 1097.903070] init: turtlebot main process (10949) terminated with status 1
[ 1097.903148] init: turtlebot main process ended, respawning
[ 1098.050512] init: turtlebot main process (10967) terminated with status 1
[ 1098.050606] init: turtlebot main process ended, respawning
[ 1098.192434] init: turtlebot main process (10993) terminated with status 1
[ 1098.192562] init: turtlebot main process ended, respawning
[ 1098.344092] init: turtlebot main process (11011) terminated with status 1
[ 1098.344231] init: turtlebot main process ended, respawning
[ 1098.485245] init: turtlebot main process (11030) terminated with status 1
[ 1098.485379] init: turtlebot main process ended, respawning
[ 1098.632992] init: turtlebot main process (11048) terminated with status 1
[ 1098.633087] init: turtlebot main process ended, respawning
[ 1098.778058] init: turtlebot main process (11066) terminated with status 1
[ 1098.778146] init: turtlebot main process ended, respawning
[ 1098.938351] init: turtlebot main process (11089) terminated with status 1
[ 1098.938486] init: turtlebot main process ended, respawning
[ 1099.091582] init: turtlebot main process (11107) terminated with status 1
[ 1099.091711] init: turtlebot respawning too fast, stopped
[ 1100.169944] init: turtlebot main process (11133) terminated with status 1
[ 1100.170034] init: turtlebot main process ended, respawning
[ 1100.317039] init: turtlebot main process (11158) terminated with status 1
[ 1100.317117] init: turtlebot main process ended, respawning
[ 1100.458252] init: turtlebot main process (11178) terminated with status 1
[ 1100.458334] init: turtlebot main process ended, respawning
[ 1100.595709] init: turtlebot main process (11196) terminated with status 1
[ 1100.595793] init: turtlebot main process ended, respawning
[ 1100.748492] init: turtlebot main process (11214) terminated with status 1
[ 1100.748626] init: turtlebot main process ended, respawning
[ 1100.898055] init: turtlebot main process (11233) terminated with status 1
[ 1100.898138] init: turtlebot main process ended, respawning
[ 1101.043998] init: turtlebot main process (11251) terminated with status 1
[ 1101.044206] init: turtlebot main process ended, respawning
[ 1101.189231] init: turtlebot main process (11269) terminated with status 1
[ 1101.189367] init: turtlebot main process ended, respawning
[ 1101.350655] init: turtlebot main process (11287) terminated with status 1
[ 1101.350798] init: turtlebot main process ended, respawning
[ 1101.500721] init: turtlebot main process (11310) terminated with status 1
[ 1101.500856] init: turtlebot main process ended, respawning
[ 1101.644145] init: turtlebot main process (11328) terminated with status 1
[ 1101.644283] init: turtlebot respawning too fast, stopped
[264451.156150] usb 4-1: USB disconnect, device number 2
[264451.156468] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[264451.156499] ftdi_sio 4-1:1.0: device disconnected
[264453.388266] usb 4-1: new full-speed USB device number 4 using ohci_hcd
[264453.573264] ftdi_sio 4-1:1.0: FTDI USB Serial Device converter detected
[264453.573381] usb 4-1: Detected FT232RL
[264453.573391] usb 4-1: Number of endpoints 2
[264453.573398] usb 4-1: Endpoint 1 MaxPacketSize 64
[264453.573405] usb 4-1: Endpoint 2 MaxPacketSize 64
[264453.573412] usb 4-1: Setting MaxPacketSize 64
[264453.577268] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[268339.616955] usb 4-1: USB disconnect, device number 4
[268339.617586] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[268339.617649] ftdi_sio 4-1:1.0: device disconnected
[268340.545423] usb 8-2: USB disconnect, device number 2
[268340.545436] usb 8-2.2: USB disconnect, device number 3
[268343.623578] keyboard: can't emulate rawmode for keycode 240
[268343.623608] keyboard: can't emulate rawmode for keycode 240
[268343.623621] asus_wmi: Unknown key 57 pressed
[268349.484292] usb 8-2: new full-speed USB device number 4 using xhci_hcd
[268349.512790] ftdi_sio 8-2:1.0: FTDI USB Serial Device converter detected
[268349.512909] usb 8-2: Detected FT232RL
[268349.512919] usb 8-2: Number of endpoints 2
[268349.512927] usb 8-2: Endpoint 1 MaxPacketSize 64
[268349.512934] usb 8-2: Endpoint 2 MaxPacketSize 64
[268349.512941] usb 8-2: Setting MaxPacketSize 64
[268349.513718] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0
[272939.358154] keyboard: can't emulate rawmode for keycode 240
[272939.358184] keyboard: can't emulate rawmode for keycode 240
[272939.358198] asus_wmi: Unknown key 58 pressed
[339739.939265] usb 8-2: USB disconnect, device number 4
[339739.939792] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339739.939855] ftdi_sio 8-2:1.0: device disconnected
[339742.624352] usb 8-1: new full-speed USB device number 5 using xhci_hcd
[339742.651197] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339742.651314] usb 8-1: Detected FT232RL
[339742.651324] usb 8-1: Number of endpoints 2
[339742.651332] usb 8-1: Endpoint 1 MaxPacketSize 64
[339742.651340] usb 8-1: Endpoint 2 MaxPacketSize 64
[339742.651346] usb 8-1: Setting MaxPacketSize 64
[339742.652429] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339762.109074] usb 8-1: USB disconnect, device number 5
[339762.109603] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339762.109662] ftdi_sio 8-1:1.0: device disconnected
[339770.116342] usb 4-1: new full-speed USB device number 5 using ohci_hcd
[339770.302041] ftdi_sio 4-1:1.0: FTDI USB Serial Device converter detected
[339770.302267] usb 4-1: Detected FT232RL
[339770.302277] usb 4-1: Number of endpoints 2
[339770.302285] usb 4-1: Endpoint 1 MaxPacketSize 64
[339770.302292] usb 4-1: Endpoint 2 MaxPacketSize 64
[339770.302299] usb 4-1: Setting MaxPacketSize 64
[339770.306100] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339794.598255] usb 4-1: USB disconnect, device number 5
[339794.598883] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339794.598943] ftdi_sio 4-1:1.0: device disconnected
[339813.148352] usb 8-1: new full-speed USB device number 6 using xhci_hcd
[339813.175554] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339813.175669] usb 8-1: Detected FT232RL
[339813.175679] usb 8-1: Number of endpoints 2
[339813.175687] usb 8-1: Endpoint 1 MaxPacketSize 64
[339813.175694] usb 8-1: Endpoint 2 MaxPacketSize 64
[339813.175701] usb 8-1: Setting MaxPacketSize 64
[339813.176481] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339844.746489] usb 8-1: USB disconnect, device number 6
[339844.747131] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339844.747191] ftdi_sio 8-1:1.0: device disconnected
[339892.976115] usb 8-1: new full-speed USB device number 7 using xhci_hcd
[339893.003507] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339893.003622] usb 8-1: Detected FT232RL
[339893.003632] usb 8-1: Number of endpoints 2
[339893.003640] usb 8-1: Endpoint 1 MaxPacketSize 64
[339893.003648] usb 8-1: Endpoint 2 MaxPacketSize 64
[339893.003654] usb 8-1: Setting MaxPacketSize 64
[339893.004286] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339904.726020] keyboard: can't emulate rawmode for keycode 240

Failed to open port /dev/ttyUSB0

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

this is the message I get when I try to run

roslaunch turtlebot_bringup minimal.launch

The cable is plugged in to the computer, but it can't seem to find it. Any advice? Thanks!


hyness@turtlebot:~$ roslaunch turtlebot_bringup minimal.launch
... logging to /home/hyness/.ros/log/e48df4ec-e303-11e1-b4b3-94dbc99cb3ba/roslaunch-turtlebot-28662.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://192.168.1.101:53917/

SUMMARY
========

PARAMETERS
 * /app_manager/interface_master
 * /diagnostic_aggregator/analyzers/digital_io/path
 * /diagnostic_aggregator/analyzers/digital_io/startswith
 * /diagnostic_aggregator/analyzers/digital_io/timeout
 * /diagnostic_aggregator/analyzers/digital_io/type
 * /diagnostic_aggregator/analyzers/mode/path
 * /diagnostic_aggregator/analyzers/mode/startswith
 * /diagnostic_aggregator/analyzers/mode/timeout
 * /diagnostic_aggregator/analyzers/mode/type
 * /diagnostic_aggregator/analyzers/nodes/contains
 * /diagnostic_aggregator/analyzers/nodes/path
 * /diagnostic_aggregator/analyzers/nodes/timeout
 * /diagnostic_aggregator/analyzers/nodes/type
 * /diagnostic_aggregator/analyzers/power/path
 * /diagnostic_aggregator/analyzers/power/startswith
 * /diagnostic_aggregator/analyzers/power/timeout
 * /diagnostic_aggregator/analyzers/power/type
 * /diagnostic_aggregator/analyzers/sensors/path
 * /diagnostic_aggregator/analyzers/sensors/startswith
 * /diagnostic_aggregator/analyzers/sensors/timeout
 * /diagnostic_aggregator/analyzers/sensors/type
 * /diagnostic_aggregator/base_path
 * /diagnostic_aggregator/pub_rate
 * /robot/name
 * /robot/type
 * /robot_description
 * /robot_pose_ekf/freq
 * /robot_pose_ekf/imu_used
 * /robot_pose_ekf/odom_used
 * /robot_pose_ekf/output_frame
 * /robot_pose_ekf/publish_tf
 * /robot_pose_ekf/sensor_timeout
 * /robot_pose_ekf/vo_used
 * /robot_state_publisher/publish_frequency
 * /rosdistro
 * /rosversion
 * /turtlebot_laptop_battery/acpi_path
 * /turtlebot_node/bonus
 * /turtlebot_node/update_rate
 * /use_sim_time

NODES
  /
    app_manager (app_manager/app_manager)
    appmaster (app_manager/appmaster)
    diagnostic_aggregator (diagnostic_aggregator/aggregator_node)
    robot_pose_ekf (robot_pose_ekf/robot_pose_ekf)
    robot_state_publisher (robot_state_publisher/state_publisher)
    turtlebot_laptop_battery (turtlebot_node/laptop_battery.py)
    turtlebot_node (turtlebot_node/turtlebot_node.py)

ROS_MASTER_URI=http://192.168.1.101:11311

core service [/rosout] found
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[appmaster-1]: started with pid [28714]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[app_manager-2]: started with pid [28715]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_node-3]: started with pid [28717]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_laptop_battery-4]: started with pid [28721]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_state_publisher-5]: started with pid [28731]
/opt/ros/fuerte/stacks/turtlebot/turtlebot_node/nodes/turtlebot_node.py:54: UserWarning: roslib.rosenv is deprecated, please use rospkg or rosgraph.rosenv
  import roslib.rosenv
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[diagnostic_aggregator-6]: started with pid [28735]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_pose_ekf-7]: started with pid [28767]
turtlebot_apps.installed
loading installation data for [turtlebot_apps.installed]
[INFO] [WallTime: 1344878483.388894] serial port: /dev/ttyUSB0
[INFO] [WallTime: 1344878483.390361] update_rate: 30.0
[INFO] [WallTime: 1344878483.391525] drive mode: twist
[INFO] [WallTime: 1344878483.392730] has gyro: True
[INFO] [WallTime: 1344878483.524643] self.gyro_measurement_range 150.000000
[INFO] [WallTime: 1344878483.525284] self.gyro_scale_correction 1.350000
[INFO] [WallTime: 1344878483.606566] Starting app manager for turtlebot
[INFO] [WallTime: 1344878483.649391] Waiting for foreign master [http://localhost:11312] to come up...
[INFO] [WallTime: 1344878483.661190] Foreign master is available
[INFO] [WallTime: 1344878483.705600] Registering (/turtlebot/app_list,http://192.168.1.101:36448/) on master http://localhost:11312
[INFO] [WallTime: 1344878483.722560] Registering (/turtlebot/application/app_status,http://192.168.1.101:36448/) on master http://localhost:11312
turtlebot_apps.installed
[INFO] [WallTime: 1344878483.738635] Registering service (/turtlebot/list_apps,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.753652] Registering service (/turtlebot/start_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.768299] Registering service (/turtlebot/stop_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[ERROR] [WallTime: 1344878486.591044] Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer. 

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

EDIT:

hyness@turtlebot:~$ dmesg | grep ttyUSB
[   19.480585] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[264451.156468] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[264453.577268] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[268339.617586] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[268349.513718] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0
[339739.939792] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339742.652429] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339762.109603] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339770.306100] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339794.598883] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339813.176481] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339844.747131] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339893.004286] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[340327.577148] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[340329.547441] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0

hyness@turtlebot:~$ ls /dev/ttyUSB*
/dev/ttyUSB0

There were too many results, and some of them were cut off; here is what I can see

[   19.518791] usbcore: registered new interface driver uvcvideo
[   19.518796] USB Video Class driver (1.1.1)
[   21.106684] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
[   21.106902] radeon 0000:00:01.0: WB enabled
[   21.123507] [drm] ring test succeeded in 1 usecs
[   21.123815] [drm] radeon: ib pool ready.
[   21.123991] [drm] ib test succeeded in 0 usecs
[   21.124725] [drm] Radeon Display Connectors
[   21.124729] [drm] Connector 0:
[   21.124732] [drm]   LVDS
[   21.124735] [drm]   HPD1
[   21.124739] [drm]   DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c
[   21.124742] [drm]   Encoders:
[   21.124745] [drm]     LCD1: INTERNAL_UNIPHY
[   21.124748] [drm] Connector 1:
[   21.124750] [drm]   HDMI-A
[   21.124753] [drm]   HPD2
[   21.124756] [drm]   DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c
[   21.124759] [drm]   Encoders:
[   21.124762] [drm]     DFP1: INTERNAL_UNIPHY
[   21.124764] [drm] Connector 2:
[   21.124766] [drm]   VGA
[   21.124770] [drm]   DDC: 0x64d8 0x64d8 0x64dc 0x64dc 0x64e0 0x64e0 0x64e4 0x64e4
[   21.124773] [drm]   Encoders:
[   21.124776] [drm]     CRT1: INTERNAL_KLDSCP_DAC1
[   21.124822] [drm] Internal thermal controller without fan control
[   21.124924] [drm] radeon: power management initialized
[   21.417147] type=1400 audit(1344614080.668:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=752 comm="apparmor_parser"
[   21.417400] type=1400 audit(1344614080.668:3): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=848 comm="apparmor_parser"
[   21.418053] type=1400 audit(1344614080.668:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=752 comm="apparmor_parser"
[   21.418328] type=1400 audit(1344614080.668:5): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=848 comm="apparmor_parser"
[   21.418579] type=1400 audit(1344614080.668:6): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=752 comm="apparmor_parser"
[   21.418858] type=1400 audit(1344614080.668:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=848 comm="apparmor_parser"
[   21.420116] type=1400 audit(1344614080.672:8): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=786 comm="apparmor_parser"
[   21.421332] type=1400 audit(1344614080.672:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=786 comm="apparmor_parser"
[   21.422023] type=1400 audit(1344614080.672:10): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=786 comm="apparmor_parser"
[   21.595083] [drm] fb mappable at 0xC0142000
[   21.595089] [drm] vram apper at 0xC0000000
[   21.595092] [drm] size 4325376
[   21.595095] [drm] fb depth is 24
[   21.595097] [drm]    pitch is 5632
[   21.595517] fbcon: radeondrmfb (fb0) is primary device
[   21.595717] Console: switching to colour frame buffer device 170x48
[   21.595769] fb0: radeondrmfb frame buffer device
[   21.595772] drm: registered panic notifier
[   21.595787] [drm] Initialized radeon 2.12.0 20080528 for 0000:00:01.0 on minor 0
[   21.595946] snd_hda_intel 0000:00:01.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[   21.596113] snd_hda_intel 0000:00:01.1: irq 45 for MSI/MSI-X
[   21.596155] snd_hda_intel 0000:00:01.1: setting latency timer to 64
[   22.166950] HDMI status: Codec=0 Pin=3 Presence_Detect=0 ELD_Valid=0
[   22.167484] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.1/sound/card0/input8
[   22.168917] snd_hda_intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   22.667532] input: HDA ATI SB Mic as /devices/pci0000:00/0000:00:14.2/sound/card1/input9
[   22.667729] input: HDA ATI SB Headphone as /devices/pci0000:00/0000:00:14.2/sound/card1/input10
[   24.208539] ppdev: user-space parallel port driver
[   24.751053] Bluetooth: RFCOMM TTY layer initialized
[   24.751066] Bluetooth: RFCOMM socket layer initialized
[   24.751070] Bluetooth: RFCOMM ver 1.11
[   25.056329] type=1400 audit(1344614084.308:11): apparmor="STATUS" operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" pid=955 comm="apparmor_parser"
[   25.374570] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   25.374578] Bluetooth: BNEP filters: protocol multicast
[   25.664430] init: failsafe main process (914) killed by TERM signal
[   29.180643] audit_printk_skb: 3 callbacks suppressed
[   29.180650] type=1400 audit(1344614088.432:13): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1061 comm="apparmor_parser"
[   29.181594] type=1400 audit(1344614088.432:14): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1061 comm="apparmor_parser"
[   29.182122] type=1400 audit(1344614088.432:15): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1061 comm="apparmor_parser"
[   29.301942] type=1400 audit(1344614088.552:16): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" pid=1060 comm="apparmor_parser"
[   29.338987] r8169 0000:06:00.0: eth0: link down
[   29.339870] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   29.340680] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   29.379476] type=1400 audit(1344614088.628:17): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=1064 comm="apparmor_parser"
[   29.380700] type=1400 audit(1344614088.632:18): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/telepathy-*" pid=1064 comm="apparmor_parser"
[   29.392618] type=1400 audit(1344614088.644:19): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=1066 comm="apparmor_parser"
[   29.393710] type=1400 audit(1344614088.644:20): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=1066 comm="apparmor_parser"
[   30.198607] type=1400 audit(1344614089.448:21): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince" pid=1062 comm="apparmor_parser"
[   30.209567] type=1400 audit(1344614089.460:22): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince//launchpad_integration" pid=1062 comm="apparmor_parser"
[   38.044681] input: Sony Playstation SixAxis/DS3 as /devices/virtual/input/input11
[   39.950793] init: plymouth-stop pre-start process (1495) terminated with status 1
[   66.674852] audit_printk_skb: 21 callbacks suppressed
[   66.674859] type=1400 audit(1344614125.925:30): apparmor="DENIED" operation="open" parent=1 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=2028 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   93.632144] eth1: no IPv6 routers present
[ 1089.780340] init: turtlebot main process (10252) terminated with status 1
[ 1089.780479] init: turtlebot main process ended, respawning
[ 1089.914035] init: turtlebot main process (10275) terminated with status 1
[ 1089.914118] init: turtlebot main process ended, respawning
[ 1090.062557] init: turtlebot main process (10293) terminated with status 1
[ 1090.062692] init: turtlebot main process ended, respawning
[ 1090.216002] init: turtlebot main process (10311) terminated with status 1
[ 1090.216218] init: turtlebot main process ended, respawning
[ 1090.365281] init: turtlebot main process (10330) terminated with status 1
[ 1090.365376] init: turtlebot main process ended, respawning
[ 1090.505878] init: turtlebot main process (10349) terminated with status 1
[ 1090.506012] init: turtlebot main process ended, respawning
[ 1090.654396] init: turtlebot main process (10367) terminated with status 1
[ 1090.654522] init: turtlebot main process ended, respawning
[ 1090.806787] init: turtlebot main process (10386) terminated with status 1
[ 1090.806871] init: turtlebot main process ended, respawning
[ 1090.950699] init: turtlebot main process (10404) terminated with status 1
[ 1090.950777] init: turtlebot main process ended, respawning
[ 1091.095898] init: turtlebot main process (10422) terminated with status 1
[ 1091.096100] init: turtlebot main process ended, respawning
[ 1091.250507] init: turtlebot main process (10440) terminated with status 1
[ 1091.250590] init: turtlebot respawning too fast, stopped
[ 1093.583821] init: turtlebot main process (10477) terminated with status 1
[ 1093.583907] init: turtlebot main process ended, respawning
[ 1093.710527] init: turtlebot main process (10499) terminated with status 1
[ 1093.710610] init: turtlebot main process ended, respawning
[ 1093.860354] init: turtlebot main process (10518) terminated with status 1
[ 1093.860450] init: turtlebot main process ended, respawning
[ 1094.010746] init: turtlebot main process (10540) terminated with status 1
[ 1094.010828] init: turtlebot main process ended, respawning
[ 1094.156003] init: turtlebot main process (10558) terminated with status 1
[ 1094.156283] init: turtlebot main process ended, respawning
[ 1094.304175] init: turtlebot main process (10576) terminated with status 1
[ 1094.304255] init: turtlebot main process ended, respawning
[ 1094.447348] init: turtlebot main process (10595) terminated with status 1
[ 1094.447429] init: turtlebot main process ended, respawning
[ 1094.611998] init: turtlebot main process (10613) terminated with status 1
[ 1094.612211] init: turtlebot main process ended, respawning
[ 1094.761463] init: turtlebot main process (10635) terminated with status 1
[ 1094.761547] init: turtlebot main process ended, respawning
[ 1094.905125] init: turtlebot main process (10654) terminated with status 1
[ 1094.905208] init: turtlebot main process ended, respawning
[ 1095.047440] init: turtlebot main process (10672) terminated with status 1
[ 1095.047573] init: turtlebot respawning too fast, stopped
[ 1095.897909] init: turtlebot main process (10702) terminated with status 1
[ 1095.898205] init: turtlebot main process ended, respawning
[ 1096.051617] init: turtlebot main process (10724) terminated with status 1
[ 1096.051789] init: turtlebot main process ended, respawning
[ 1096.204070] init: turtlebot main process (10742) terminated with status 1
[ 1096.204210] init: turtlebot main process ended, respawning
[ 1096.354565] init: turtlebot main process (10761) terminated with status 1
[ 1096.354699] init: turtlebot main process ended, respawning
[ 1096.505661] init: turtlebot main process (10779) terminated with status 1
[ 1096.505760] init: turtlebot main process ended, respawning
[ 1096.649149] init: turtlebot main process (10797) terminated with status 1
[ 1096.649283] init: turtlebot main process ended, respawning
[ 1096.800127] init: turtlebot main process (10815) terminated with status 1
[ 1096.800214] init: turtlebot main process ended, respawning
[ 1096.951878] init: turtlebot main process (10834) terminated with status 1
[ 1096.951962] init: turtlebot main process ended, respawning
[ 1097.096739] init: turtlebot main process (10852) terminated with status 1
[ 1097.096821] init: turtlebot main process ended, respawning
[ 1097.250754] init: turtlebot main process (10870) terminated with status 1
[ 1097.250837] init: turtlebot main process ended, respawning
[ 1097.396069] init: turtlebot main process (10889) terminated with status 1
[ 1097.396209] init: turtlebot respawning too fast, stopped
[ 1097.639494] init: turtlebot main process (10911) terminated with status 1
[ 1097.639593] init: turtlebot main process ended, respawning
[ 1097.781413] init: turtlebot main process (10929) terminated with status 1
[ 1097.781491] init: turtlebot main process ended, respawning
[ 1097.903070] init: turtlebot main process (10949) terminated with status 1
[ 1097.903148] init: turtlebot main process ended, respawning
[ 1098.050512] init: turtlebot main process (10967) terminated with status 1
[ 1098.050606] init: turtlebot main process ended, respawning
[ 1098.192434] init: turtlebot main process (10993) terminated with status 1
[ 1098.192562] init: turtlebot main process ended, respawning
[ 1098.344092] init: turtlebot main process (11011) terminated with status 1
[ 1098.344231] init: turtlebot main process ended, respawning
[ 1098.485245] init: turtlebot main process (11030) terminated with status 1
[ 1098.485379] init: turtlebot main process ended, respawning
[ 1098.632992] init: turtlebot main process (11048) terminated with status 1
[ 1098.633087] init: turtlebot main process ended, respawning
[ 1098.778058] init: turtlebot main process (11066) terminated with status 1
[ 1098.778146] init: turtlebot main process ended, respawning
[ 1098.938351] init: turtlebot main process (11089) terminated with status 1
[ 1098.938486] init: turtlebot main process ended, respawning
[ 1099.091582] init: turtlebot main process (11107) terminated with status 1
[ 1099.091711] init: turtlebot respawning too fast, stopped
[ 1100.169944] init: turtlebot main process (11133) terminated with status 1
[ 1100.170034] init: turtlebot main process ended, respawning
[ 1100.317039] init: turtlebot main process (11158) terminated with status 1
[ 1100.317117] init: turtlebot main process ended, respawning
[ 1100.458252] init: turtlebot main process (11178) terminated with status 1
[ 1100.458334] init: turtlebot main process ended, respawning
[ 1100.595709] init: turtlebot main process (11196) terminated with status 1
[ 1100.595793] init: turtlebot main process ended, respawning
[ 1100.748492] init: turtlebot main process (11214) terminated with status 1
[ 1100.748626] init: turtlebot main process ended, respawning
[ 1100.898055] init: turtlebot main process (11233) terminated with status 1
[ 1100.898138] init: turtlebot main process ended, respawning
[ 1101.043998] init: turtlebot main process (11251) terminated with status 1
[ 1101.044206] init: turtlebot main process ended, respawning
[ 1101.189231] init: turtlebot main process (11269) terminated with status 1
[ 1101.189367] init: turtlebot main process ended, respawning
[ 1101.350655] init: turtlebot main process (11287) terminated with status 1
[ 1101.350798] init: turtlebot main process ended, respawning
[ 1101.500721] init: turtlebot main process (11310) terminated with status 1
[ 1101.500856] init: turtlebot main process ended, respawning
[ 1101.644145] init: turtlebot main process (11328) terminated with status 1
[ 1101.644283] init: turtlebot respawning too fast, stopped
[264451.156150] usb 4-1: USB disconnect, device number 2
[264451.156468] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[264451.156499] ftdi_sio 4-1:1.0: device disconnected
[264453.388266] usb 4-1: new full-speed USB device number 4 using ohci_hcd
[264453.573264] ftdi_sio 4-1:1.0: FTDI USB Serial Device converter detected
[264453.573381] usb 4-1: Detected FT232RL
[264453.573391] usb 4-1: Number of endpoints 2
[264453.573398] usb 4-1: Endpoint 1 MaxPacketSize 64
[264453.573405] usb 4-1: Endpoint 2 MaxPacketSize 64
[264453.573412] usb 4-1: Setting MaxPacketSize 64
[264453.577268] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[268339.616955] usb 4-1: USB disconnect, device number 4
[268339.617586] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[268339.617649] ftdi_sio 4-1:1.0: device disconnected
[268340.545423] usb 8-2: USB disconnect, device number 2
[268340.545436] usb 8-2.2: USB disconnect, device number 3
[268343.623578] keyboard: can't emulate rawmode for keycode 240
[268343.623608] keyboard: can't emulate rawmode for keycode 240
[268343.623621] asus_wmi: Unknown key 57 pressed
[268349.484292] usb 8-2: new full-speed USB device number 4 using xhci_hcd
[268349.512790] ftdi_sio 8-2:1.0: FTDI USB Serial Device converter detected
[268349.512909] usb 8-2: Detected FT232RL
[268349.512919] usb 8-2: Number of endpoints 2
[268349.512927] usb 8-2: Endpoint 1 MaxPacketSize 64
[268349.512934] usb 8-2: Endpoint 2 MaxPacketSize 64
[268349.512941] usb 8-2: Setting MaxPacketSize 64
[268349.513718] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0
[272939.358154] keyboard: can't emulate rawmode for keycode 240
[272939.358184] keyboard: can't emulate rawmode for keycode 240
[272939.358198] asus_wmi: Unknown key 58 pressed
[339739.939265] usb 8-2: USB disconnect, device number 4
[339739.939792] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339739.939855] ftdi_sio 8-2:1.0: device disconnected
[339742.624352] usb 8-1: new full-speed USB device number 5 using xhci_hcd
[339742.651197] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339742.651314] usb 8-1: Detected FT232RL
[339742.651324] usb 8-1: Number of endpoints 2
[339742.651332] usb 8-1: Endpoint 1 MaxPacketSize 64
[339742.651340] usb 8-1: Endpoint 2 MaxPacketSize 64
[339742.651346] usb 8-1: Setting MaxPacketSize 64
[339742.652429] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339762.109074] usb 8-1: USB disconnect, device number 5
[339762.109603] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339762.109662] ftdi_sio 8-1:1.0: device disconnected
[339770.116342] usb 4-1: new full-speed USB device number 5 using ohci_hcd
[339770.302041] ftdi_sio 4-1:1.0: FTDI USB Serial Device converter detected
[339770.302267] usb 4-1: Detected FT232RL
[339770.302277] usb 4-1: Number of endpoints 2
[339770.302285] usb 4-1: Endpoint 1 MaxPacketSize 64
[339770.302292] usb 4-1: Endpoint 2 MaxPacketSize 64
[339770.302299] usb 4-1: Setting MaxPacketSize 64
[339770.306100] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339794.598255] usb 4-1: USB disconnect, device number 5
[339794.598883] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339794.598943] ftdi_sio 4-1:1.0: device disconnected
[339813.148352] usb 8-1: new full-speed USB device number 6 using xhci_hcd
[339813.175554] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339813.175669] usb 8-1: Detected FT232RL
[339813.175679] usb 8-1: Number of endpoints 2
[339813.175687] usb 8-1: Endpoint 1 MaxPacketSize 64
[339813.175694] usb 8-1: Endpoint 2 MaxPacketSize 64
[339813.175701] usb 8-1: Setting MaxPacketSize 64
[339813.176481] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339844.746489] usb 8-1: USB disconnect, device number 6
[339844.747131] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339844.747191] ftdi_sio 8-1:1.0: device disconnected
[339892.976115] usb 8-1: new full-speed USB device number 7 using xhci_hcd
[339893.003507] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339893.003622] usb 8-1: Detected FT232RL
[339893.003632] usb 8-1: Number of endpoints 2
[339893.003640] usb 8-1: Endpoint 1 MaxPacketSize 64
[339893.003648] usb 8-1: Endpoint 2 MaxPacketSize 64
[339893.003654] usb 8-1: Setting MaxPacketSize 64
[339893.004286] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339904.726020] keyboard: can't emulate rawmode for keycode 240

Failed to open port /dev/ttyUSB0

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

this is the message I get when I try to run

roslaunch turtlebot_bringup minimal.launch

The cable is plugged in to the computer, but it can't seem to find it. Any advice? Thanks!


hyness@turtlebot:~$ roslaunch turtlebot_bringup minimal.launch
... logging to /home/hyness/.ros/log/e48df4ec-e303-11e1-b4b3-94dbc99cb3ba/roslaunch-turtlebot-28662.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://192.168.1.101:53917/

SUMMARY
========

PARAMETERS
 * /app_manager/interface_master
 * /diagnostic_aggregator/analyzers/digital_io/path
 * /diagnostic_aggregator/analyzers/digital_io/startswith
 * /diagnostic_aggregator/analyzers/digital_io/timeout
 * /diagnostic_aggregator/analyzers/digital_io/type
 * /diagnostic_aggregator/analyzers/mode/path
 * /diagnostic_aggregator/analyzers/mode/startswith
 * /diagnostic_aggregator/analyzers/mode/timeout
 * /diagnostic_aggregator/analyzers/mode/type
 * /diagnostic_aggregator/analyzers/nodes/contains
 * /diagnostic_aggregator/analyzers/nodes/path
 * /diagnostic_aggregator/analyzers/nodes/timeout
 * /diagnostic_aggregator/analyzers/nodes/type
 * /diagnostic_aggregator/analyzers/power/path
 * /diagnostic_aggregator/analyzers/power/startswith
 * /diagnostic_aggregator/analyzers/power/timeout
 * /diagnostic_aggregator/analyzers/power/type
 * /diagnostic_aggregator/analyzers/sensors/path
 * /diagnostic_aggregator/analyzers/sensors/startswith
 * /diagnostic_aggregator/analyzers/sensors/timeout
 * /diagnostic_aggregator/analyzers/sensors/type
 * /diagnostic_aggregator/base_path
 * /diagnostic_aggregator/pub_rate
 * /robot/name
 * /robot/type
 * /robot_description
 * /robot_pose_ekf/freq
 * /robot_pose_ekf/imu_used
 * /robot_pose_ekf/odom_used
 * /robot_pose_ekf/output_frame
 * /robot_pose_ekf/publish_tf
 * /robot_pose_ekf/sensor_timeout
 * /robot_pose_ekf/vo_used
 * /robot_state_publisher/publish_frequency
 * /rosdistro
 * /rosversion
 * /turtlebot_laptop_battery/acpi_path
 * /turtlebot_node/bonus
 * /turtlebot_node/update_rate
 * /use_sim_time

NODES
  /
    app_manager (app_manager/app_manager)
    appmaster (app_manager/appmaster)
    diagnostic_aggregator (diagnostic_aggregator/aggregator_node)
    robot_pose_ekf (robot_pose_ekf/robot_pose_ekf)
    robot_state_publisher (robot_state_publisher/state_publisher)
    turtlebot_laptop_battery (turtlebot_node/laptop_battery.py)
    turtlebot_node (turtlebot_node/turtlebot_node.py)

ROS_MASTER_URI=http://192.168.1.101:11311

core service [/rosout] found
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[appmaster-1]: started with pid [28714]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[app_manager-2]: started with pid [28715]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_node-3]: started with pid [28717]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[turtlebot_laptop_battery-4]: started with pid [28721]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_state_publisher-5]: started with pid [28731]
/opt/ros/fuerte/stacks/turtlebot/turtlebot_node/nodes/turtlebot_node.py:54: UserWarning: roslib.rosenv is deprecated, please use rospkg or rosgraph.rosenv
  import roslib.rosenv
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[diagnostic_aggregator-6]: started with pid [28735]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[robot_pose_ekf-7]: started with pid [28767]
turtlebot_apps.installed
loading installation data for [turtlebot_apps.installed]
[INFO] [WallTime: 1344878483.388894] serial port: /dev/ttyUSB0
[INFO] [WallTime: 1344878483.390361] update_rate: 30.0
[INFO] [WallTime: 1344878483.391525] drive mode: twist
[INFO] [WallTime: 1344878483.392730] has gyro: True
[INFO] [WallTime: 1344878483.524643] self.gyro_measurement_range 150.000000
[INFO] [WallTime: 1344878483.525284] self.gyro_scale_correction 1.350000
[INFO] [WallTime: 1344878483.606566] Starting app manager for turtlebot
[INFO] [WallTime: 1344878483.649391] Waiting for foreign master [http://localhost:11312] to come up...
[INFO] [WallTime: 1344878483.661190] Foreign master is available
[INFO] [WallTime: 1344878483.705600] Registering (/turtlebot/app_list,http://192.168.1.101:36448/) on master http://localhost:11312
[INFO] [WallTime: 1344878483.722560] Registering (/turtlebot/application/app_status,http://192.168.1.101:36448/) on master http://localhost:11312
turtlebot_apps.installed
[INFO] [WallTime: 1344878483.738635] Registering service (/turtlebot/list_apps,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.753652] Registering service (/turtlebot/start_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[INFO] [WallTime: 1344878483.768299] Registering service (/turtlebot/stop_app,rosrpc://192.168.1.101:48816) on master http://localhost:11312
[ERROR] [WallTime: 1344878486.591044] Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer. 

Failed to open port /dev/ttyUSB0.  Please make sure the Create cable is plugged into the computer.

EDIT:

hyness@turtlebot:~$ dmesg | grep ttyUSB
[   19.480585] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[264451.156468] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[264453.577268] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[268339.617586] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[268349.513718] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0
[339739.939792] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339742.652429] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339762.109603] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339770.306100] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339794.598883] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339813.176481] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339844.747131] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339893.004286] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[340327.577148] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[340329.547441] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0

hyness@turtlebot:~$ ls /dev/ttyUSB*
/dev/ttyUSB0

There were too many results, and some of them were cut off; here is what I can see

[   19.518791] usbcore: registered new interface driver uvcvideo
[   19.518796] USB Video Class driver (1.1.1)
[   21.106684] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
[   21.106902] radeon 0000:00:01.0: WB enabled
[   21.123507] [drm] ring test succeeded in 1 usecs
[   21.123815] [drm] radeon: ib pool ready.
[   21.123991] [drm] ib test succeeded in 0 usecs
[   21.124725] [drm] Radeon Display Connectors
[   21.124729] [drm] Connector 0:
[   21.124732] [drm]   LVDS
[   21.124735] [drm]   HPD1
[   21.124739] [drm]   DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c
[   21.124742] [drm]   Encoders:
[   21.124745] [drm]     LCD1: INTERNAL_UNIPHY
[   21.124748] [drm] Connector 1:
[   21.124750] [drm]   HDMI-A
[   21.124753] [drm]   HPD2
[   21.124756] [drm]   DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c
[   21.124759] [drm]   Encoders:
[   21.124762] [drm]     DFP1: INTERNAL_UNIPHY
[   21.124764] [drm] Connector 2:
[   21.124766] [drm]   VGA
[   21.124770] [drm]   DDC: 0x64d8 0x64d8 0x64dc 0x64dc 0x64e0 0x64e0 0x64e4 0x64e4
[   21.124773] [drm]   Encoders:
[   21.124776] [drm]     CRT1: INTERNAL_KLDSCP_DAC1
[   21.124822] [drm] Internal thermal controller without fan control
[   21.124924] [drm] radeon: power management initialized
[   21.417147] type=1400 audit(1344614080.668:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=752 comm="apparmor_parser"
[   21.417400] type=1400 audit(1344614080.668:3): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=848 comm="apparmor_parser"
[   21.418053] type=1400 audit(1344614080.668:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=752 comm="apparmor_parser"
[   21.418328] type=1400 audit(1344614080.668:5): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=848 comm="apparmor_parser"
[   21.418579] type=1400 audit(1344614080.668:6): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=752 comm="apparmor_parser"
[   21.418858] type=1400 audit(1344614080.668:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=848 comm="apparmor_parser"
[   21.420116] type=1400 audit(1344614080.672:8): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=786 comm="apparmor_parser"
[   21.421332] type=1400 audit(1344614080.672:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=786 comm="apparmor_parser"
[   21.422023] type=1400 audit(1344614080.672:10): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=786 comm="apparmor_parser"
[   21.595083] [drm] fb mappable at 0xC0142000
[   21.595089] [drm] vram apper at 0xC0000000
[   21.595092] [drm] size 4325376
[   21.595095] [drm] fb depth is 24
[   21.595097] [drm]    pitch is 5632
[   21.595517] fbcon: radeondrmfb (fb0) is primary device
[   21.595717] Console: switching to colour frame buffer device 170x48
[   21.595769] fb0: radeondrmfb frame buffer device
[   21.595772] drm: registered panic notifier
[   21.595787] [drm] Initialized radeon 2.12.0 20080528 for 0000:00:01.0 on minor 0
[   21.595946] snd_hda_intel 0000:00:01.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[   21.596113] snd_hda_intel 0000:00:01.1: irq 45 for MSI/MSI-X
[   21.596155] snd_hda_intel 0000:00:01.1: setting latency timer to 64
[   22.166950] HDMI status: Codec=0 Pin=3 Presence_Detect=0 ELD_Valid=0
[   22.167484] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.1/sound/card0/input8
[   22.168917] snd_hda_intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   22.667532] input: HDA ATI SB Mic as /devices/pci0000:00/0000:00:14.2/sound/card1/input9
[   22.667729] input: HDA ATI SB Headphone as /devices/pci0000:00/0000:00:14.2/sound/card1/input10
[   24.208539] ppdev: user-space parallel port driver
[   24.751053] Bluetooth: RFCOMM TTY layer initialized
[   24.751066] Bluetooth: RFCOMM socket layer initialized
[   24.751070] Bluetooth: RFCOMM ver 1.11
[   25.056329] type=1400 audit(1344614084.308:11): apparmor="STATUS" operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" pid=955 comm="apparmor_parser"
[   25.374570] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   25.374578] Bluetooth: BNEP filters: protocol multicast
[   25.664430] init: failsafe main process (914) killed by TERM signal
[   29.180643] audit_printk_skb: 3 callbacks suppressed
[   29.180650] type=1400 audit(1344614088.432:13): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1061 comm="apparmor_parser"
[   29.181594] type=1400 audit(1344614088.432:14): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1061 comm="apparmor_parser"
[   29.182122] type=1400 audit(1344614088.432:15): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1061 comm="apparmor_parser"
[   29.301942] type=1400 audit(1344614088.552:16): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" pid=1060 comm="apparmor_parser"
[   29.338987] r8169 0000:06:00.0: eth0: link down
[   29.339870] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   29.340680] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   29.379476] type=1400 audit(1344614088.628:17): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=1064 comm="apparmor_parser"
[   29.380700] type=1400 audit(1344614088.632:18): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/telepathy-*" pid=1064 comm="apparmor_parser"
[   29.392618] type=1400 audit(1344614088.644:19): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=1066 comm="apparmor_parser"
[   29.393710] type=1400 audit(1344614088.644:20): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=1066 comm="apparmor_parser"
[   30.198607] type=1400 audit(1344614089.448:21): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince" pid=1062 comm="apparmor_parser"
[   30.209567] type=1400 audit(1344614089.460:22): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince//launchpad_integration" pid=1062 comm="apparmor_parser"
[   38.044681] input: Sony Playstation SixAxis/DS3 as /devices/virtual/input/input11
[   39.950793] init: plymouth-stop pre-start process (1495) terminated with status 1
[   66.674852] audit_printk_skb: 21 callbacks suppressed
[   66.674859] type=1400 audit(1344614125.925:30): apparmor="DENIED" operation="open" parent=1 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=2028 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   93.632144] eth1: no IPv6 routers present
[ 1089.780340] init: turtlebot main process (10252) terminated with status 1
[ 1089.780479] init: turtlebot main process ended, respawning
[ 1089.914035] init: turtlebot main process (10275) terminated with status 1
[ 1089.914118] init: turtlebot main process ended, respawning
[ 1090.062557] init: turtlebot main process (10293) terminated with status 1
[ 1090.062692] init: turtlebot main process ended, respawning
[ 1090.216002] init: turtlebot main process (10311) terminated with status 1
[ 1090.216218] init: turtlebot main process ended, respawning
[ 1090.365281] init: turtlebot main process (10330) terminated with status 1
[ 1090.365376] init: turtlebot main process ended, respawning
[ 1090.505878] init: turtlebot main process (10349) terminated with status 1
[ 1090.506012] init: turtlebot main process ended, respawning
[ 1090.654396] init: turtlebot main process (10367) terminated with status 1
[ 1090.654522] init: turtlebot main process ended, respawning
[ 1090.806787] init: turtlebot main process (10386) terminated with status 1
[ 1090.806871] init: turtlebot main process ended, respawning
[ 1090.950699] init: turtlebot main process (10404) terminated with status 1
[ 1090.950777] init: turtlebot main process ended, respawning
[ 1091.095898] init: turtlebot main process (10422) terminated with status 1
[ 1091.096100] init: turtlebot main process ended, respawning
[ 1091.250507] init: turtlebot main process (10440) terminated with status 1
[ 1091.250590] init: turtlebot respawning too fast, stopped
[ 1093.583821] init: turtlebot main process (10477) terminated with status 1
[ 1093.583907] init: turtlebot main process ended, respawning
[ 1093.710527] init: turtlebot main process (10499) terminated with status 1
[ 1093.710610] init: turtlebot main process ended, respawning
[ 1093.860354] init: turtlebot main process (10518) terminated with status 1
[ 1093.860450] init: turtlebot main process ended, respawning
[ 1094.010746] init: turtlebot main process (10540) terminated with status 1
[ 1094.010828] init: turtlebot main process ended, respawning
[ 1094.156003] init: turtlebot main process (10558) terminated with status 1
[ 1094.156283] init: turtlebot main process ended, respawning
[ 1094.304175] init: turtlebot main process (10576) terminated with status 1
[ 1094.304255] init: turtlebot main process ended, respawning
[ 1094.447348] init: turtlebot main process (10595) terminated with status 1
[ 1094.447429] init: turtlebot main process ended, respawning
[ 1094.611998] init: turtlebot main process (10613) terminated with status 1
[ 1094.612211] init: turtlebot main process ended, respawning
[ 1094.761463] init: turtlebot main process (10635) terminated with status 1
[ 1094.761547] init: turtlebot main process ended, respawning
[ 1094.905125] init: turtlebot main process (10654) terminated with status 1
[ 1094.905208] init: turtlebot main process ended, respawning
[ 1095.047440] init: turtlebot main process (10672) terminated with status 1
[ 1095.047573] init: turtlebot respawning too fast, stopped
[ 1095.897909] init: turtlebot main process (10702) terminated with status 1
[ 1095.898205] init: turtlebot main process ended, respawning
[ 1096.051617] init: turtlebot main process (10724) terminated with status 1
[ 1096.051789] init: turtlebot main process ended, respawning
[ 1096.204070] init: turtlebot main process (10742) terminated with status 1
[ 1096.204210] init: turtlebot main process ended, respawning
[ 1096.354565] init: turtlebot main process (10761) terminated with status 1
[ 1096.354699] init: turtlebot main process ended, respawning
[ 1096.505661] init: turtlebot main process (10779) terminated with status 1
[ 1096.505760] init: turtlebot main process ended, respawning
[ 1096.649149] init: turtlebot main process (10797) terminated with status 1
[ 1096.649283] init: turtlebot main process ended, respawning
[ 1096.800127] init: turtlebot main process (10815) terminated with status 1
[ 1096.800214] init: turtlebot main process ended, respawning
[ 1096.951878] init: turtlebot main process (10834) terminated with status 1
[ 1096.951962] init: turtlebot main process ended, respawning
[ 1097.096739] init: turtlebot main process (10852) terminated with status 1
[ 1097.096821] init: turtlebot main process ended, respawning
[ 1097.250754] init: turtlebot main process (10870) terminated with status 1
[ 1097.250837] init: turtlebot main process ended, respawning
[ 1097.396069] init: turtlebot main process (10889) terminated with status 1
[ 1097.396209] init: turtlebot respawning too fast, stopped
[ 1097.639494] init: turtlebot main process (10911) terminated with status 1
[ 1097.639593] init: turtlebot main process ended, respawning
[ 1097.781413] init: turtlebot main process (10929) terminated with status 1
[ 1097.781491] init: turtlebot main process ended, respawning
[ 1097.903070] init: turtlebot main process (10949) terminated with status 1
[ 1097.903148] init: turtlebot main process ended, respawning
[ 1098.050512] init: turtlebot main process (10967) terminated with status 1
[ 1098.050606] init: turtlebot main process ended, respawning
[ 1098.192434] init: turtlebot main process (10993) terminated with status 1
[ 1098.192562] init: turtlebot main process ended, respawning
[ 1098.344092] init: turtlebot main process (11011) terminated with status 1
[ 1098.344231] init: turtlebot main process ended, respawning
[ 1098.485245] init: turtlebot main process (11030) terminated with status 1
[ 1098.485379] init: turtlebot main process ended, respawning
[ 1098.632992] init: turtlebot main process (11048) terminated with status 1
[ 1098.633087] init: turtlebot main process ended, respawning
[ 1098.778058] init: turtlebot main process (11066) terminated with status 1
[ 1098.778146] init: turtlebot main process ended, respawning
[ 1098.938351] init: turtlebot main process (11089) terminated with status 1
[ 1098.938486] init: turtlebot main process ended, respawning
[ 1099.091582] init: turtlebot main process (11107) terminated with status 1
[ 1099.091711] init: turtlebot respawning too fast, stopped
[ 1100.169944] init: turtlebot main process (11133) terminated with status 1
[ 1100.170034] init: turtlebot main process ended, respawning
[ 1100.317039] init: turtlebot main process (11158) terminated with status 1
[ 1100.317117] init: turtlebot main process ended, respawning
[ 1100.458252] init: turtlebot main process (11178) terminated with status 1
[ 1100.458334] init: turtlebot main process ended, respawning
[ 1100.595709] init: turtlebot main process (11196) terminated with status 1
[ 1100.595793] init: turtlebot main process ended, respawning
[ 1100.748492] init: turtlebot main process (11214) terminated with status 1
[ 1100.748626] init: turtlebot main process ended, respawning
[ 1100.898055] init: turtlebot main process (11233) terminated with status 1
[ 1100.898138] init: turtlebot main process ended, respawning
[ 1101.043998] init: turtlebot main process (11251) terminated with status 1
[ 1101.044206] init: turtlebot main process ended, respawning
[ 1101.189231] init: turtlebot main process (11269) terminated with status 1
[ 1101.189367] init: turtlebot main process ended, respawning
[ 1101.350655] init: turtlebot main process (11287) terminated with status 1
[ 1101.350798] init: turtlebot main process ended, respawning
[ 1101.500721] init: turtlebot main process (11310) terminated with status 1
[ 1101.500856] init: turtlebot main process ended, respawning
[ 1101.644145] init: turtlebot main process (11328) terminated with status 1
[ 1101.644283] init: turtlebot respawning too fast, stopped
[264451.156150] usb 4-1: USB disconnect, device number 2
[264451.156468] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[264451.156499] ftdi_sio 4-1:1.0: device disconnected
[264453.388266] usb 4-1: new full-speed USB device number 4 using ohci_hcd
[264453.573264] ftdi_sio 4-1:1.0: FTDI USB Serial Device converter detected
[264453.573381] usb 4-1: Detected FT232RL
[264453.573391] usb 4-1: Number of endpoints 2
[264453.573398] usb 4-1: Endpoint 1 MaxPacketSize 64
[264453.573405] usb 4-1: Endpoint 2 MaxPacketSize 64
[264453.573412] usb 4-1: Setting MaxPacketSize 64
[264453.577268] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[268339.616955] usb 4-1: USB disconnect, device number 4
[268339.617586] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[268339.617649] ftdi_sio 4-1:1.0: device disconnected
[268340.545423] usb 8-2: USB disconnect, device number 2
[268340.545436] usb 8-2.2: USB disconnect, device number 3
[268343.623578] keyboard: can't emulate rawmode for keycode 240
[268343.623608] keyboard: can't emulate rawmode for keycode 240
[268343.623621] asus_wmi: Unknown key 57 pressed
[268349.484292] usb 8-2: new full-speed USB device number 4 using xhci_hcd
[268349.512790] ftdi_sio 8-2:1.0: FTDI USB Serial Device converter detected
[268349.512909] usb 8-2: Detected FT232RL
[268349.512919] usb 8-2: Number of endpoints 2
[268349.512927] usb 8-2: Endpoint 1 MaxPacketSize 64
[268349.512934] usb 8-2: Endpoint 2 MaxPacketSize 64
[268349.512941] usb 8-2: Setting MaxPacketSize 64
[268349.513718] usb 8-2: FTDI USB Serial Device converter now attached to ttyUSB0
[272939.358154] keyboard: can't emulate rawmode for keycode 240
[272939.358184] keyboard: can't emulate rawmode for keycode 240
[272939.358198] asus_wmi: Unknown key 58 pressed
[339739.939265] usb 8-2: USB disconnect, device number 4
[339739.939792] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339739.939855] ftdi_sio 8-2:1.0: device disconnected
[339742.624352] usb 8-1: new full-speed USB device number 5 using xhci_hcd
[339742.651197] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339742.651314] usb 8-1: Detected FT232RL
[339742.651324] usb 8-1: Number of endpoints 2
[339742.651332] usb 8-1: Endpoint 1 MaxPacketSize 64
[339742.651340] usb 8-1: Endpoint 2 MaxPacketSize 64
[339742.651346] usb 8-1: Setting MaxPacketSize 64
[339742.652429] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339762.109074] usb 8-1: USB disconnect, device number 5
[339762.109603] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339762.109662] ftdi_sio 8-1:1.0: device disconnected
[339770.116342] usb 4-1: new full-speed USB device number 5 using ohci_hcd
[339770.302041] ftdi_sio 4-1:1.0: FTDI USB Serial Device converter detected
[339770.302267] usb 4-1: Detected FT232RL
[339770.302277] usb 4-1: Number of endpoints 2
[339770.302285] usb 4-1: Endpoint 1 MaxPacketSize 64
[339770.302292] usb 4-1: Endpoint 2 MaxPacketSize 64
[339770.302299] usb 4-1: Setting MaxPacketSize 64
[339770.306100] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339794.598255] usb 4-1: USB disconnect, device number 5
[339794.598883] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339794.598943] ftdi_sio 4-1:1.0: device disconnected
[339813.148352] usb 8-1: new full-speed USB device number 6 using xhci_hcd
[339813.175554] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339813.175669] usb 8-1: Detected FT232RL
[339813.175679] usb 8-1: Number of endpoints 2
[339813.175687] usb 8-1: Endpoint 1 MaxPacketSize 64
[339813.175694] usb 8-1: Endpoint 2 MaxPacketSize 64
[339813.175701] usb 8-1: Setting MaxPacketSize 64
[339813.176481] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339844.746489] usb 8-1: USB disconnect, device number 6
[339844.747131] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[339844.747191] ftdi_sio 8-1:1.0: device disconnected
[339892.976115] usb 8-1: new full-speed USB device number 7 using xhci_hcd
[339893.003507] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected
[339893.003622] usb 8-1: Detected FT232RL
[339893.003632] usb 8-1: Number of endpoints 2
[339893.003640] usb 8-1: Endpoint 1 MaxPacketSize 64
[339893.003648] usb 8-1: Endpoint 2 MaxPacketSize 64
[339893.003654] usb 8-1: Setting MaxPacketSize 64
[339893.004286] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB0
[339904.726020] keyboard: can't emulate rawmode for keycode 240