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2015-09-18 18:39:23 -0500 | marked best answer | ROSWTF Problems hyness-workstation@hynessworkstation-OptiPlex-755:~$ roswtf
Loaded plugin tf.tfwtf
No package or stack in context
================================================================================
Static checks summary:
Found 1 warning(s).
Warnings are things that may be just fine, but are sometimes at fault
WARNING ROS_HOSTNAME may be incorrect: ROS_HOSTNAME [ROS_IP] cannot be resolved to an IP address
================================================================================
Beginning tests of your ROS graph. These may take awhile...
analyzing graph...
... done analyzing graph
running graph rules...
ERROR: connection refused to [http://192.168.1.100:38906/]
... done running graph rules
Online checks summary:
Found 1 warning(s).
Warnings are things that may be just fine, but are sometimes at fault
WARNING The following node subscriptions are unconnected:
* /turtlebot_dashboard_12116_1344524598265:
* /diagnostics_toplevel_state
Found 4 error(s).
ERROR Communication with [/turtlebot_dashboard_12116_1344524598265] raised an error:
ERROR Communication with [/rosout] raised an error:
ERROR Could not contact the following nodes:
* /turtlebot_dashboard_12116_1344524598265
ERROR The following nodes should be connected but aren't:
* /turtlebot_dashboard_12116_1344524598265->/rosout (/rosout)
WHAT DO THESE ERRORS MEAN? HOW DO I FIX THEM? THANKS! |
2014-01-28 17:26:58 -0500 | marked best answer | 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 ... (more) |
2014-01-28 17:26:58 -0500 | marked best answer | Turtlebot Bringup So I am going back through the steps of the bringup, since the demos are not working, and I try hyness@turtlebot:~$ roslaunch turtlebot_bringup minimal.launch
... logging to /home/hyness/.ros/log/e48df4ec-e303-11e1-b4b3-94dbc99cb3ba/roslaunch-turtlebot-17513.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.
Unable to contact my own server at [http://192.168.1.100:56965/].
This usually means that the network is not configured properly.
A common cause is that the machine cannot ping itself. Please check
for errors by running:
ping 192.168.1.100
For more tips, please see
http://www.ros.org/wiki/ROS/NetworkSetup
hyness@turtlebot:~$
It works fine when I ping that IP; what is the problem here? how do I fix it? Thanks! hyness@turtlebot:~$ env | grep ROS
ROS_ROOT=/opt/ros/fuerte/share/ros
ROS_PACKAGE_PATH=/opt/ros/fuerte/share:/opt/ros/fuerte/stacks
ROSLISP_PACKAGE_DIRECTORY=/opt/ros/fuerte/share/common-lisp/ros
ROS_MASTER_URI=http://192.168.1.101:11311
ROS_DISTRO=fuerte
ROS_IP=192.168.1.101
ROS_ETC_DIR=/opt/ros/fuerte/etc/ros
|
2014-01-28 17:26:55 -0500 | marked best answer | SSH into Turtlebot? So my workstation and computer are finally connected, and now it tells me to ssh into the laptop from the workstation. When I type in "ssh turtlebot@192.168.1.101" (the ip of the laptop being 192.168.1.101), I am prompted to enter a password. The password is not the normal password of the computer, and when I guess incorrectly three times, it tells me "Permission denied (publickey,password)". what does this mean? how do I find the publickey? **Here is the info of the laptop**
hyness@turtlebot:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 10:bf:48:16:d7:9d
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:43 Base address:0xc000
eth1 Link encap:Ethernet HWaddr 94:db:c9:9c:b3:ba
inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::96db:c9ff:fe9c:b3ba/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:115679 errors:0 dropped:0 overruns:0 frame:410389
TX packets:107116 errors:19 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:32919823 (32.9 MB) TX bytes:16498997 (16.4 MB)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:187731 errors:0 dropped:0 overruns:0 frame:0
TX packets:187731 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:24223708 (24.2 MB) TX bytes:24223708 (24.2 MB)
**From Workstation**
ssh turtlebot@192.168.1.101
turtlebot@192.168.1.101's password:
Permission denied, please try again.
turtlebot@192.168.1.101's password:
Permission denied, please try again.
turtlebot@192.168.1.101's password:
Permission denied (publickey,password)'
WHAT AM I DOING WRONG? |
2014-01-28 17:26:54 -0500 | marked best answer | Unset ROS_HOSTNAME I am trying now to set ROS_IP instead of ROS_HOSTNAME. How do I unset ROS_HOSTNAME? |
2013-01-23 10:31:25 -0500 | marked best answer | ERROR: Unable to communicate with master! I have been trying to set up a turtle bot for the past couple days. So I went through the instructions found here and made it up to 5.4; when i typed in "rostopic list" into the workstation, it is unable to communicate with master. ON WORKSTATION echo $ROS_MASTER_URI http://192.168.1.101:11311 echo $ROS_HOSTNAME 192.168.1.100 ON LAPTOP echo $ROS_MASTER_URI http://192.168.1.100:11311 echo $ROS_HOSTNAME 192.168.1.101 Laptop IP=192.168.1.101
Workstation IP=192.168.1.100 Any help with resolving this issue would be appreciated. Thanks! |
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2012-08-30 09:08:21 -0500 | asked a question | Turtlebot won't stop hyness@turtlebot:~$ sudo service turtlebot stop
[sudo] password for hyness:
stop: Unknown instance:
why does my turtlebot do this? It will start just fine, but the stop command does not work. Please advise if you need screenshots, or any other additional info. |
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2012-08-22 06:19:48 -0500 | asked a question | Kinect laser problems process[kinect_laser_narrow-6]: started with pid [11613]
[ INFO] [1345651995.309589141]: [/openni_launch] Number devices connected: 1
[ INFO] [1345651995.310258410]: [/openni_launch] 1. device on bus 008:16 is a Xbox NUI Camera (2ae) from Microsoft (45e) with serial id 'A00367A04475111A'
[ WARN] [1345651995.313676130]: [/openni_launch] device_id is not set! Using first device.
nodelet: /usr/include/boost/smart_ptr/shared_ptr.hpp:412: boost::shared_ptr<T>::reference boost::shared_ptr<T>::operator*() const [with T = xn::NodeInfo, boost::shared_ptr<T>::reference = xn::NodeInfo&]: Assertion `px != 0' failed.
[FATAL] [1345651995.760413081]: Service call failed!
[FATAL] [1345651995.760845247]: Service call failed!
[FATAL] [1345651995.760931777]: Service call failed!
[FATAL] [1345651995.762017568]: Service call failed!
[openni_manager-2] process has died [pid 11396, exit code -6, cmd /opt/ros/fuerte/stacks/nodelet_core/nodelet/bin/nodelet manager __name:=openni_manager __log:=/home/hyness/.ros/log/554f5f92-eae6-11e1-bc87-94dbc99cb3ba/openni_manager-2.log].
log file: /home/hyness/.ros/log/554f5f92-eae6-11e1-bc87-94dbc99cb3ba/openni_manager-2*.log
respawning...
When I try to run the follower program on my turtlebot, everything goes fine, until it hits the section above; then it freaks out and restarts the program again, until it runs into that section again. What does this mean? How do I fix it? Thanks!!! Also, when I run kinect bringup, then start rviz, I can view through the camera on the kinect, but the point cloud and laser scan do not work. Not sure if that helps but...? |
2012-08-22 04:57:33 -0500 | asked a question | [ INFO] [1345647384.436612487]: Still waiting on map... rosrun rviz rviz -d rospack find turtlebot_navigation /nav_rviz.vcg When I ran this on my turtlebot, as directed here, the turtlebot kept repeating "Still waiting on map...". I then continued, and started rviz, with the command given on the webpage. When it started, the rviz screen was black, and no map was being shown. I tried teleoping it around the room to see if I could pick something up, but it still remained black. Any ideas on what the problem might be, or how to make a map using my turtlebot? Thanks! Also, when i try to run roslaunch turtlebot_calibration calibrate.launch it says "Still waiting for scan" |
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2012-08-22 04:44:48 -0500 | commented question | Failed to open port /dev/ttyUSB0 THANKS! It was a cable problem, and now it is running basic demos. |
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