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2018-11-02 00:22:16 -0500 marked best answer Invalid <node> tag: node name cannot contain a namespace.
sibot@sibot1:~/new_ver_ws$ roslaunch -v segway_bringup segway_astra.launch 
... logging to /home/sibot/.ros/log/93c6fb7a-28d2-11e7-bb49-0001c01bc206/roslaunch-sibot1-14348.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.

... loading XML file [/opt/ros/indigo/etc/ros/roscore.xml]
... executing command param [rosversion roslaunch]
Added parameter [/rosversion]
... executing command param [rosversion -d]
Added parameter [/rosdistro]
Added core node of type [rosout/rosout] in namespace [/]
... loading XML file [/home/sibot/new_ver_ws/src/segway_v3_robot/segway_bringup/launch/sensors/segway_astra.launch]
... loading XML file [/home/sibot/new_ver_ws/src/segway_v3_robot/third_party_sensors/ros_astra_launch/launch/astra.launch]
... loading XML file [/opt/ros/indigo/share/rgbd_launch/launch/includes/manager.launch.xml]
Added parameter [/segway/front_astra/segway/front_astra_nodelet_manager/num_worker_threads]
while processing /home/sibot/new_ver_ws/src/segway_v3_robot/third_party_sensors/ros_astra_launch/launch/astra.launch:
while processing /opt/ros/indigo/share/rgbd_launch/launch/includes/manager.launch.xml:
Invalid <node> tag: node name cannot contain a namespace. 

Node xml is <node args="manager" launch-prefix="$(arg launch_prefix)" name="$(arg name)" output="screen" pkg="nodelet" type="nodelet">
     <param name="num_worker_threads" value="$(arg num_worker_threads)"/>
  </node>
The traceback for the exception was written to the log file
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2017-04-24 07:46:10 -0500 asked a question Invalid <node> tag: node name cannot contain a namespace.

Invalid <node> tag: node name cannot contain a namespace. sibot@sibot1:~/new_ver_ws$ roslaunch -v segway_bringup s

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2017-01-15 00:15:44 -0500 asked a question Gazebo Crashes after Saving changes made in Building Editor
aswin@aswin-laptop:~$ gazebo
Gazebo multi-robot simulator, version 2.2.3
Copyright (C) 2012-2014 Open Source Robotics Foundation.
Released under the Apache 2 License.
http://gazebosim.org

Msg Waiting for master
Gazebo multi-robot simulator, version 2.2.3
Copyright (C) 2012-2014 Open Source Robotics Foundation.
Released under the Apache 2 License.
http://gazebosim.org

Msg Waiting for master
Msg Connected to gazebo master @ http://127.0.0.1:11345
Msg Connected to gazebo master @ http://127.0.0.1:11345
MsgMsg  Publicized address: Publicized address: 192.168.0.118192.168.0.118

Got bus address:  "unix:abstract=/tmp/dbus-A0Ml3tBjYI,guid=b4f4543280f74edb915ca54f587b43c4" 
Connected to accessibility bus at:  "unix:abstract=/tmp/dbus-A0Ml3tBjYI,guid=b4f4543280f74edb915ca54f587b43c4" 
Registered DEC:  true 
Registered event listener change listener:  true 
FIXME: handle dialog start. 
FIXME: handle dialog end.
2017-01-15 00:03:43 -0500 asked a question Gazebo 2.2.3 Crashes after Building Editor

aswin@aswin-laptop:~$ gazebo Gazebo multi-robot simulator, version 2.2.3 Copyright (C) 2012-2014 Open Source Robotics Foundation. Released under the Apache 2 License. http://gazebosim.org

Msg Waiting for master
Gazebo multi-robot simulator, version 2.2.3
Copyright (C) 2012-2014 Open Source Robotics Foundation.
Released under the Apache 2 License.
http://gazebosim.org

Msg Waiting for master
Msg Connected to gazebo master @ http://127.0.0.1:11345
Msg Connected to gazebo master @ http://127.0.0.1:11345
MsgMsg  Publicized address: Publicized address: 192.168.0.118192.168.0.118

Got bus address:  "unix:abstract=/tmp/dbus-A0Ml3tBjYI,guid=b4f4543280f74edb915ca54f587b43c4" 
Connected to accessibility bus at:  "unix:abstract=/tmp/dbus-A0Ml3tBjYI,guid=b4f4543280f74edb915ca54f587b43c4" 
Registered DEC:  true 
Registered event listener change listener:  true 
FIXME: handle dialog start. 
FIXME: handle dialog end.
2017-01-04 06:00:50 -0500 asked a question Could not set operational Mode

I am receiving the following error - Could not set operational Mode, Platform did not respond, Stopping the robot...

What could be the reason?

    aswin@aswinpc:~/wizo_ws$ roslaunch segway_navigation_apps 2d_map_nav_demo.launch map_file:=map
    ... logging to /home/aswin/.ros/log/62947272-d273-11e6-83d0-a4db30d0de0b/roslaunch-aswinpc-18304.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://aswinpc:34605/

    SUMMARY
    ========

    CLEAR PARAMETERS
     * /amcl/
     * /move_base/
     * /segway_move_base/

    PARAMETERS
     * /amcl/base_frame_id: /segway/base_link
     * /amcl/first_map_only: False
     * /amcl/global_frame_id: /map
     * /amcl/gui_publish_rate: -1.0
     * /amcl/initial_cov_aa: 0.06853
     * /amcl/initial_cov_xx: 0.25
     * /amcl/initial_cov_yy: 0.25
     * /amcl/initial_pose_a: 0.0
     * /amcl/initial_pose_x: 0.0
     * /amcl/initial_pose_y: 0.0
     * /amcl/kld_err: 0.05
     * /amcl/kld_z: 0.99
     * /amcl/laser_lambda_short: 0.1
     * /amcl/laser_likelihood_max_dist: 2.0
     * /amcl/laser_max_beams: 60
     * /amcl/laser_max_range: -1.0
     * /amcl/laser_min_range: -1.0
     * /amcl/laser_model_type: likelihood_field

 * /amcl/laser_sigma_hit: 0.2
 * /amcl/laser_z_hit: 0.5
 * /amcl/laser_z_max: 0.05
 * /amcl/laser_z_rand: 0.5
 * /amcl/laser_z_short: 0.05
 * /amcl/max_particles: 2000
 * /amcl/min_particles: 500
 * /amcl/odom_alpha1: 0.15
 * /amcl/odom_alpha2: 0.15
 * /amcl/odom_alpha3: 0.15
 * /amcl/odom_alpha4: 0.15
 * /amcl/odom_alpha5: 0.1
 * /amcl/odom_frame_id: /odom
 * /amcl/odom_model_type: diff
 * /amcl/recovery_alpha_fast: 0.1
 * /amcl/recovery_alpha_slow: 0.001
 * /amcl/resample_interval: 1
 * /amcl/save_pose_rate: 0.5
 * /amcl/transform_tolerance: 0.5
 * /amcl/update_min_a: 0.2
 * /amcl/update_min_d: 0.25
 * /amcl/use_map_topic: False
 * /move_base/DWAPlannerROS/acc_lim_th: 3.2
 * /move_base/DWAPlannerROS/acc_lim_x: 2.5
 * /move_base/DWAPlannerROS/acc_lim_y: 0.0
 * /move_base/DWAPlannerROS/angular_sim_granularity: 0.025
 * /move_base/DWAPlannerROS/controller_frequency: 20.0
 * /move_base/DWAPlannerROS/forward_point_distance: 0.5
 * /move_base/DWAPlannerROS/goal_distance_bias: 24.0
 * /move_base/DWAPlannerROS/latch_xy_goal_tolerance: True
 * /move_base/DWAPlannerROS/max_rot_vel: 1.0
 * /move_base/DWAPlannerROS/max_scaling_factor: 0.2
 * /move_base/DWAPlannerROS/max_trans_vel: 1.0
 * /move_base/DWAPlannerROS/max_vel_x: 0.5
 * /move_base/DWAPlannerROS/max_vel_y: 0.0
 * /move_base/DWAPlannerROS/min_rot_vel: 0.4
 * /move_base/DWAPlannerROS/min_trans_vel: 0.0
 * /move_base/DWAPlannerROS/min_vel_x: 0.0
 * /move_base/DWAPlannerROS/min_vel_y: 0.0
 * /move_base/DWAPlannerROS/occdist_scale: 0.01
 * /move_base/DWAPlannerROS/oscillation_reset_dist: 0.025
 * /move_base/DWAPlannerROS/path_distance_bias: 32.0
 * /move_base/DWAPlannerROS/penalize_negative_x: True
 * /move_base/DWAPlannerROS/prune_plan: True
 * /move_base/DWAPlannerROS/scaling_speed: 0.25
 * /move_base/DWAPlannerROS/sim_granularity: 0.025
 * /move_base/DWAPlannerROS/sim_time: 1.7
 * /move_base/DWAPlannerROS/stop_time_buffer: 0.2
 * /move_base/DWAPlannerROS/vtheta_samples: 10
 * /move_base/DWAPlannerROS/vx_samples: 6
 * /move_base/DWAPlannerROS/xy_goal_tolerance: 0.2
 * /move_base/DWAPlannerROS/yaw_goal_tolerance: 0.1
 * /move_base/GlobalPlanner/cost_factor: 3.0
 * /move_base/GlobalPlanner/lethal_cost: 100
 * /move_base/GlobalPlanner/neutral_cost: 50
 * /move_base/GlobalPlanner/orientation_mode: 1
 * /move_base/GlobalPlanner/publish_potential: False
 * /move_base/TrajectoryPlannerROS/acc_lim_theta: 3.2
 * /move_base/TrajectoryPlannerROS/acc_lim_x: 2.5
 * /move_base/TrajectoryPlannerROS/acc_lim_y: 0.0
 * /move_base/TrajectoryPlannerROS/angular_sim_granularity: 0.025
 * /move_base/TrajectoryPlannerROS/controller_frequency: 20.0
 * /move_base/TrajectoryPlannerROS/dwa: False
 * /move_base/TrajectoryPlannerROS/escape_vel: -0.1
 * /move_base/TrajectoryPlannerROS/gdist_scale: 0.8
 * /move_base/TrajectoryPlannerROS/global_frame_id: /odom
 * /move_base/TrajectoryPlannerROS/heading_lookahead: 0.5
 * /move_base/TrajectoryPlannerROS/heading_scoring: False
 * /move_base/TrajectoryPlannerROS/heading_scoring_timestep: 0.8
 * /move_base/TrajectoryPlannerROS/holonomic_robot: False
 * /move_base/TrajectoryPlannerROS/latch_xy_goal_tolerance: False
 * /move_base/TrajectoryPlannerROS/max_vel_theta: 1.0
 * /move_base/TrajectoryPlannerROS/max_vel_x: 1.0
 * /move_base/TrajectoryPlannerROS/meter_scoring: True
 * /move_base/TrajectoryPlannerROS/min_in_place_vel_theta: 0.4
 * /move_base/TrajectoryPlannerROS/min_vel_theta: -1.0
 * /move_base/TrajectoryPlannerROS/min_vel_x: 0.1
 * /move_base/TrajectoryPlannerROS/occdist_scale: 0.01
 * /move_base/TrajectoryPlannerROS/oscillation_reset_dist: 0.025
 * /move_base/TrajectoryPlannerROS/pdist_scale ...
(more)
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2016-12-20 02:03:34 -0500 asked a question catkin_make --pkg astra_camera | /usr/bin/ld: cannot find -lOpenNI2Orbbec
aswin@aswin-laptop:~/camera$ catkin_make --pkg astra_camera
Base path: /home/aswin/camera
Source space: /home/aswin/camera/src
Build space: /home/aswin/camera/build
Devel space: /home/aswin/camera/devel
Install space: /home/aswin/camera/install
####
#### Running command: "make cmake_check_build_system" in "/home/aswin/camera/build"
####
####
#### Running command: "make -j8 -l8" in "/home/aswin/camera/build/ros_astra_camera"
####
[ 11%] [ 11%] [ 11%] Built target astra_camera_gencfg
Built target astra_usb_reset
Performing update step for 'astra_openni2'
[ 11%] Built target _astra_camera_generate_messages_check_deps_GetSerial
[ 25%] [ 25%] [ 25%] Built target astra_camera_generate_messages_lisp
Built target astra_camera_generate_messages_py
Built target astra_camera_generate_messages_cpp
[ 25%] Built target astra_camera_generate_messages
Already on 'orbbec_ros'
Your branch is up-to-date with 'origin/orbbec_ros'.
[ 29%] Performing configure step for 'astra_openni2'
no need to configure
[ 33%] Performing build step for 'astra_openni2'
make[3]: warning: jobserver unavailable: using -j1.  Add `+' to parent make rule.
[ 37%] Performing install step for 'astra_openni2'
[ 40%] Completed 'astra_openni2'
[ 51%] Built target astra_openni2
Linking CXX shared library /home/aswin/camera/devel/lib/libastra_wrapper.so
/usr/bin/ld: cannot find -lOpenNI2Orbbec
collect2: error: ld returned 1 exit status
make[2]: *** [/home/aswin/camera/devel/lib/libastra_wrapper.so] Error 1
make[1]: *** [ros_astra_camera/CMakeFiles/astra_wrapper.dir/all] Error 2
make: *** [all] Error 2
Invoking "make -j8 -l8" failed
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2016-11-15 02:56:01 -0500 asked a question Catkin Make Error Invoking "make -j8 -l8" failed

just the copy'n'paste of the console...

aswin@aswinpc:~/nash_ws$ catkin_make
Base path: /home/aswin/nash_ws
Source space: /home/aswin/nash_ws/src
Build space: /home/aswin/nash_ws/build
Devel space: /home/aswin/nash_ws/devel
Install space: /home/aswin/nash_ws/install
####
#### Running command: "make cmake_check_build_system" in "/home/aswin/nash_ws/build"
####
####
#### Running command: "make -j8 -l8" in "/home/aswin/nash_ws/build"
####
[  0%] Built target std_msgs_generate_messages_cpp
[  0%] [  0%] Built target nav_msgs_generate_messages_cpp
Built target std_msgs_generate_messages_lisp
[  0%] [  0%] Built target nav_msgs_generate_messages_py
Built target nav_msgs_generate_messages_lisp
[  0%] Built target std_msgs_generate_messages_py
[  0%] [  0%] Built target _hector_nav_msgs_generate_messages_check_deps_GetRecoveryInfo
[  0%] [  0%] Built target _hector_nav_msgs_generate_messages_check_deps_GetSearchPosition
Built target _hector_nav_msgs_generate_messages_check_deps_GetDistanceToObstacle
Built target _hector_nav_msgs_generate_messages_check_deps_GetNormal
[  0%] Built target _hector_nav_msgs_generate_messages_check_deps_GetRobotTrajectory
[  0%] Built target _velodyne_msgs_generate_messages_check_deps_VelodyneScan
[  0%] Built target _custom_msgs_generate_messages_check_deps_baroSample
[  0%] [  0%] Built target _custom_msgs_generate_messages_check_deps_sensorSample
Built target _custom_msgs_generate_messages_check_deps_BaroSensorSample
[  0%] [  0%] Built target _custom_msgs_generate_messages_check_deps_GnssSensorSample
Built target _velodyne_msgs_generate_messages_check_deps_VelodynePacket
[  0%] [  0%] Built target _custom_msgs_generate_messages_check_deps_Internal
Built target _custom_msgs_generate_messages_check_deps_gnssSample
[  0%] Built target sensor_msgs_generate_messages_lisp
[  0%] Built target sensor_msgs_generate_messages_cpp
[  0%] [  0%] Built target sensor_msgs_generate_messages_py
Built target rosgraph_msgs_generate_messages_cpp
[  0%] Built target _catkin_empty_exported_target
[  0%] [  0%] Built target geometry_msgs_generate_messages_cpp
Built target geometry_msgs_generate_messages_py
[  0%] [  0%] Built target geometry_msgs_generate_messages_lisp
Built target _custom_msgs_generate_messages_check_deps_orientationEstimate
[  0%] [  0%] [  0%] Built target _custom_msgs_generate_messages_check_deps_velocityEstimate
Built target actionlib_msgs_generate_messages_py
Built target actionlib_msgs_generate_messages_lisp
[  0%] Built target _custom_msgs_generate_messages_check_deps_XsensQuaternion
[  0%] Built target _custom_msgs_generate_messages_check_deps_ImuSensorSample
[  0%] [  0%] Built target actionlib_msgs_generate_messages_cpp
Built target roscpp_generate_messages_cpp
[  0%] [  0%] Built target rosgraph_msgs_generate_messages_py
Built target _custom_msgs_generate_messages_check_deps_positionEstimate
[  0%] [  0%] Built target roscpp_generate_messages_py
[  0%] Built target roscpp_generate_messages_lisp
Built target rosgraph_msgs_generate_messages_lisp
[  0%] Built target map_to_image_node
[  0%] Built target _segway_msgs_generate_messages_check_deps_Faultlog
[  0%] [  0%] [  0%] [  0%] [  0%] Built target _segway_msgs_generate_messages_check_deps_Dynamics
Built target _segway_msgs_generate_messages_check_deps_ConfigCmd
Generating dynamic reconfigure files from cfg/segway.cfg: /home/aswin/nash_ws/devel/include/segway_ros/segwayConfig.h /home/aswin/nash_ws/devel/lib/python2.7/dist-packages/segway_ros/cfg/segwayConfig.py
Built target _segway_msgs_generate_messages_check_deps_Status
[  0%] Built target _segway_msgs_generate_messages_check_deps_AuxPower
Built target _segway_msgs_generate_messages_check_deps_Configuration
/home/aswin/nash_ws/build/segway_v3/segway_ros/setup_custom_pythonpath.sh: 4: exec: /home/aswin/nash_ws/src/segway_v3/segway_ros/cfg/segway.cfg: Permission denied
make[2]: *** [/home/aswin/nash_ws/devel/include/segway_ros/segwayConfig.h] Error 126
make[1]: *** [segway_v3/segway_ros/CMakeFiles/segway_ros_gencfg.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[  0%] Built target tf_generate_messages_cpp
[  1%] [  1%] [  1%] [  1%] [  1%] Built target tf2_msgs_generate_messages_py
Built target imu_attitude_to_tf_node
Built target visualization_msgs_generate_messages_lisp
Built target _segway_msgs_generate_messages_check_deps_Propulsion
Built target tf_generate_messages_lisp
[  2%] Built target pose_and_orientation_to_imu_node
make: *** [all] Error 2
Invoking "make -j8 -l8" failed
2016-11-15 02:53:48 -0500 asked a question Catkin Make error
easwin@aswinpc:~/nash_ws$ catkin_make

Base path: /home/aswin/nash_ws Source space: /home/aswin/nash_ws/src Build space: /home/aswin/nash_ws/build Devel space: /home/aswin/nash_ws/devel Install space: /home/aswin/nash_ws/install ####

Running command: "make cmake_check_build_system" in "/home/aswin/nash_ws/build"

#### ####

Running command: "make -j8 -l8" in "/home/aswin/nash_ws/build"

#### [ 0%] Built target std_msgs_generate_messages_cpp [ 0%] [ 0%] Built target nav_msgs_generate_messages_cpp Built target std_msgs_generate_messages_lisp [ 0%] [ 0%] Built target nav_msgs_generate_messages_py Built target nav_msgs_generate_messages_lisp [ 0%] Built target std_msgs_generate_messages_py [ 0%] [ 0%] Built target _hector_nav_msgs_generate_messages_check_deps_GetRecoveryInfo [ 0%] [ 0%] Built target _hector_nav_msgs_generate_messages_check_deps_GetSearchPosition Built target _hector_nav_msgs_generate_messages_check_deps_GetDistanceToObstacle Built target _hector_nav_msgs_generate_messages_check_deps_GetNormal [ 0%] Built target _hector_nav_msgs_generate_messages_check_deps_GetRobotTrajectory [ 0%] Built target _velodyne_msgs_generate_messages_check_deps_VelodyneScan [ 0%] Built target _custom_msgs_generate_messages_check_deps_baroSample [ 0%] [ 0%] Built target _custom_msgs_generate_messages_check_deps_sensorSample Built target _custom_msgs_generate_messages_check_deps_BaroSensorSample [ 0%] [ 0%] Built target _custom_msgs_generate_messages_check_deps_GnssSensorSample Built target _velodyne_msgs_generate_messages_check_deps_VelodynePacket [ 0%] [ 0%] Built target _custom_msgs_generate_messages_check_deps_Internal Built target _custom_msgs_generate_messages_check_deps_gnssSample [ 0%] Built target sensor_msgs_generate_messages_lisp [ 0%] Built target sensor_msgs_generate_messages_cpp [ 0%] [ 0%] Built target sensor_msgs_generate_messages_py Built target rosgraph_msgs_generate_messages_cpp [ 0%] Built target _catkin_empty_exported_target [ 0%] [ 0%] Built target geometry_msgs_generate_messages_cpp Built target geometry_msgs_generate_messages_py [ 0%] [ 0%] Built target geometry_msgs_generate_messages_lisp Built target _custom_msgs_generate_messages_check_deps_orientationEstimate [ 0%] [ 0%] [ 0%] Built target _custom_msgs_generate_messages_check_deps_velocityEstimate Built target actionlib_msgs_generate_messages_py Built target actionlib_msgs_generate_messages_lisp [ 0%] Built target _custom_msgs_generate_messages_check_deps_XsensQuaternion [ 0%] Built target _custom_msgs_generate_messages_check_deps_ImuSensorSample [ 0%] [ 0%] Built target actionlib_msgs_generate_messages_cpp Built target roscpp_generate_messages_cpp [ 0%] [ 0%] Built target rosgraph_msgs_generate_messages_py Built target _custom_msgs_generate_messages_check_deps_positionEstimate [ 0%] [ 0%] Built target roscpp_generate_messages_py [ 0%] Built target roscpp_generate_messages_lisp Built target rosgraph_msgs_generate_messages_lisp [ 0%] Built target map_to_image_node [ 0%] Built target _segway_msgs_generate_messages_check_deps_Faultlog [ 0%] [ 0%] [ 0%] [ 0%] [ 0%] Built target _segway_msgs_generate_messages_check_deps_Dynamics Built target _segway_msgs_generate_messages_check_deps_ConfigCmd Generating dynamic reconfigure files from cfg/segway.cfg: /home/aswin/nash_ws/devel/include/segway_ros/segwayConfig.h /home/aswin/nash_ws/devel/lib/python2.7/dist-packages/segway_ros/cfg/segwayConfig.py Built target _segway_msgs_generate_messages_check_deps_Status [ 0%] Built target _segway_msgs_generate_messages_check_deps_AuxPower Built target _segway_msgs_generate_messages_check_deps_Configuration /home/aswin/nash_ws/build/segway_v3/segway_ros/setup_custom_pythonpath.sh: 4: exec: /home/aswin/nash_ws/src/segway_v3/segway_ros/cfg/segway.cfg: Permission denied make[2]: * [/home/aswin/nash_ws/devel/include/segway_ros/segwayConfig.h] Error 126 make[1]: [segway_v3/segway_ros/CMakeFiles/segway_ros_gencfg.dir/all] Error 2 make[1]: Waiting for unfinished jobs.... [ 0%] Built target tf_generate_messages_cpp [ 1%] [ 1%] [ 1%] [ 1%] [ 1%] Built target tf2_msgs_generate_messages_py Built target imu_attitude_to_tf_node Built target visualization_msgs_generate_messages_lisp Built target _segway_msgs_generate_messages_check_deps_Propulsion Built target tf_generate_messages_lisp [ 2%] Built target pose_and_orientation_to_imu_node make: * [all] Error 2 Invoking "make -j8 -l8" failed

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2016-09-29 08:52:15 -0500 asked a question How to perform SLAM on Segway RMP 220 V3 using Velodyne VLP 16?

I want to perform SLAM on Segway RMP 220 V3 using a Velodyne VLP 16. The system comes without a Navigator, Navigator Elite Package.

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2016-09-07 09:58:15 -0500 asked a question Any idea on performing localization & mapping using a Velodyne VLP-16 LIDAR?

I am new to ROS. I want to do the SLAM for a humanoid robot with Stanley Innovations's RMP-220 V3 Base Platform and Velodyne VLP-16 LIDAR. Do I have to use an IMU? to perform this?

I am using ROS Kinetic. I have found out that Velodyne drivers support have released only till ROS Indigo. Using Kinetic will be a problem?