Can't roslaunch pi_tracker skeleton.launch

asked 2018-08-01 00:09:31 -0500

CHIN gravatar image

updated 2018-08-03 01:45:09 -0500

Hello, Im trying to use the pirobot's pi_tracker. Im not sure my catkin_make is done or not but it showed 100%, so i assumed it's done. But when i try to roslaunch pi_tracker skeleton.launch, this is the result anybody can give some advice about this? thanks

mob17@Seguro:~/ros_ws$ roslaunch pi_tracker skeleton.launch
... logging to /home/mob17/.ros/log/ea684000-96e6-11e8-8192-3476c54e4047/roslaunch-Seguro-8538.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
WARNING: disk usage in log directory [/home/mob17/.ros/log] is over 1GB.
It's recommended that you use the 'rosclean' command.

Traceback (most recent call last):
  File "/opt/ros/indigo/share/xacro/", line 62, in <module>
  File "/opt/ros/indigo/lib/python2.7/dist-packages/xacro/", line 687, in main
    process_includes(doc, os.path.dirname(args[0]))
  File "/opt/ros/indigo/lib/python2.7/dist-packages/xacro/", line 246, in process_includes
    filename_spec = eval_text(elt.getAttribute('filename'), {})
  File "/opt/ros/indigo/lib/python2.7/dist-packages/xacro/", line 485, in eval_text
  File "/opt/ros/indigo/lib/python2.7/dist-packages/xacro/", line 473, in handle_extension
    return eval_extension("$(%s)" % s)
  File "/opt/ros/indigo/lib/python2.7/dist-packages/xacro/", line 66, in eval_extension
    return substitution_args.resolve_args(str, context=substitution_args_context, resolve_anon=False)
  File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/", line 316, in resolve_args
    resolved = _resolve_args(resolved, context, resolve_anon, commands)
  File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/", line 329, in _resolve_args
    resolved = commands[command](resolved, a, args, context)
  File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/", line 157, in _find
    pkg_path = rp.get_path(args[0])
  File "/usr/lib/python2.7/dist-packages/rospkg/", line 203, in get_path
    raise ResourceNotFound(name, ros_paths=self._ros_paths)
rospkg.common.ResourceNotFound: rbx2_description
ROS path [0]=/opt/ros/indigo/share/ros
ROS path [1]=/home/mob17/ros_ws/src
ROS path [2]=/home/mob17/kentac_ws/src
ROS path [3]=/opt/ros/indigo/share
ROS path [4]=/opt/ros/indigo/stacks
Invalid <param> tag: Cannot load command parameter [robot_description]: command [/opt/ros/indigo/share/xacro/ '/home/mob17/ros_ws/src/pi_tracker-indigo-devel/urdf/pi_robot/pi_robot_with_two_arms.xacro'] returned with code [1]. 

Param xml is <param command="$(find xacro)/ '$(find pi_tracker)/urdf/pi_robot/pi_robot_with_two_arms.xacro'" name="robot_description"/>
The traceback for the exception was written to the log file
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Can you please update your question with a copy and paste of the full error and command used right before it occurred.

jayess gravatar image jayess  ( 2018-08-01 00:50:39 -0500 )edit

Your out put is hard to read because the text in the middle is all on one line instead of separate lines like normal. Can you try copy and pasting again while preserving the formatting?

jayess gravatar image jayess  ( 2018-08-02 02:20:51 -0500 )edit

Also, is this the pi_robot package that you're using?

jayess gravatar image jayess  ( 2018-08-02 02:21:12 -0500 )edit

sorry for the untidiness. Edited. Ya, that's the one. Thank you very much

CHIN gravatar image CHIN  ( 2018-08-03 01:46:07 -0500 )edit

has anyone found the problem ?

desperate97 gravatar image desperate97  ( 2021-08-11 12:47:52 -0500 )edit

@desperate97 since this question is over 3 years old, you should create a new question for better visibility and reference this one

jayess gravatar image jayess  ( 2021-08-11 15:53:35 -0500 )edit