Roslaunch with supervisor

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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!