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Roslaunch with supervisor

asked 2017-05-05 08:57:35 -0500

Irod gravatar image

Hello, I am using supervisor and roslaunch in order to start my turtlebot. Running the launch file on the robot directly works fine... but when I try to run it using supervisor it cannot locate the nodes.

After asking around and looking for answers on the internet I found that the problem could lie on the setup of my environment variables. I solved many of the first problems by setting up the PYTHON_PATH and ROS_PACKAGE_PATH environment variables in my supervisor configuration file...but I still get these errors on my error.log file:

ERROR: cannot launch node of type [map_server/map_server]: can't locate node [map_server] in package [map_server]

ERROR: cannot launch node of type [map_server/map_server]: can't locate node [map_server] in package [map_server]

ERROR: cannot launch node of type [rosbridge_server/rosbridge_websocket]: can't locate node [rosbridge_websocket] in  package [rosbridge_server] 

ERROR: cannot launch node of type [rosapi/rosapi_node]: can't locate node [rosapi_node] in package [rosapi] Unhandled exception in thread started by sys.excepthook is missing lost sys.stderr

Does anyone have experience working with supervisor and ROS and could help me with this problem?

Thanks!

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answered 2017-05-05 23:39:34 -0500

ahendrix gravatar image

You also need to set CMAKE_PREFIX_PATH (so that ROS can find nodes built with catkin), LD_LIBRARY_PATH (so that binaries can find their dynamic libraries) and maybe a few other environment variables too.

If possible, it would be better to have supervisord source the setup.bash or setup.sh file for your ROS workspace. This will probably be easier than setting the environment variables manually, and it will make sure that you don't accidentally forget to set anything.

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Thanks for the answer. I solved it by setting the environment variables manually...for now, because I still don't know how to source the setup.bash or setup.sh file with supervisord and I agree that would be better.

Irod gravatar image Irod  ( 2017-05-09 07:12:13 -0500 )edit

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Asked: 2017-05-05 08:54:33 -0500

Seen: 590 times

Last updated: May 05 '17