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There is most likely no problem with sound_play and / or audio_common.

I see, so the problem is that it exits even though it is not told so.

According to the console output you show, it is actually told to shutdown:

Traceback (most recent call last):
  File "/home/odroid/catkin_ws.tolga/src/rehabilitation_framework-working_demo_with_gui/src/Exercises.py", line 856, in <module>
    ros_motion_type = rosparam.get_param("/reha_exercise/motion_type")
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rosparam/__init__.py", line 214, in get_param
    return get_param_server().getParam(param)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rosgraph/masterapi.py", line 206, in getParam
    return self._succeed(self.handle.getParam(self.caller_id, key))
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rosgraph/masterapi.py", line 154, in _succeed
    raise Error(msg)
rosgraph.masterapi.MasterError: Parameter [/reha_exercise/motion_type] is not set
================================================================================
REQUIRED process [rehabilitation_framework-3] has died!

Because rehabilitation_framework-3 dies, and is set as required in your launch file, roslaunch will start shutting down all the other nodes. That would include your sound_play node.

So the real issue here is: why does rehabilitation_framework shut down?

Probably because of:

rosgraph.masterapi.MasterError: Parameter [/reha_exercise/motion_type] is not set

I don't know anything about this software, so I can't help you there, but the error should be on line 856 in /home/odroid/catkin_ws.tolga/src/rehabilitation_framework-working_demo_with_gui/src/Exercises.py, which is:

ros_motion_type = rosparam.get_param("/reha_exercise/motion_type")

Are you starting everything correctly? Is the launch file setting that parameter? If not, that is what the problem is.