Works with rosrun but not with roslaunch

asked 2017-08-14 04:48:24 -0500

yh gravatar image

updated 2017-08-14 13:45:51 -0500

jayess gravatar image


I have a video data being streamed into a local host (to a socket). When I run my executable using rosrun it works well, but when I use roslaunch to run the same node, it says the resource is temporarily unavailable (error from the socket).

The error message I get is this:

process[cmvideo_node-1]: started with pid [9553]
VDS: unknown host: __name:=cmvideo_node
Can't initialise vds client (returns -2, Resource temporarily unavailable)
terminate called after throwing an instance of 'class_loader::LibraryUnloadException'
  what():  Attempt to unload library that class_loader is unaware of.
[cmvideo_node-1] process has died [pid 9553, exit code -6, cmd /home/providentia/Documents/bridge_demo/workspace/cm_sim/devel/lib/cmvideo/cmvideo_node __name:=cmvideo_node __log:=/home/providentia/.ros/log/395ae26a-80d3-11e7-abe7-f48e38a43ac3/cmvideo_node-1.log].
log file: /home/providentia/.ros/log/395ae26a-80d3-11e7-abe7-f48e38a43ac3/cmvideo_node-1*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor...
... shutting down processing monitor complete

I use the following for rosrun: rosrun cmvideo cmvideo_node

And I use the following launch file: <node pkg = "cmvideo" type="cmvideo_node" name="cmvideo_node" ></node>

I know it's not a syntax problem, because the error message I get from the roslaunch is not from ros but from my executable file. Thank you for your help in advance!

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This has most likely nothing to do with MoveIt, but the cmvideo_node is not structured correctly. It is not processing the args that ROS passes to it correctly. @yh: please link us to (on github fi) your node, or include a snippet that shows how your node is initialised. Add it to your question ..

gvdhoorn gravatar image gvdhoorn  ( 2017-08-15 02:04:19 -0500 )edit

.. by using the edit link/button.

gvdhoorn gravatar image gvdhoorn  ( 2017-08-15 02:04:29 -0500 )edit