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"ImportError: No module named deserialize" when launching ur5_bringup.launch

asked 2014-10-27 09:02:22 -0500

rkeatin3 gravatar image

updated 2014-10-27 10:47:11 -0500

When I attempt to run the command roslaunch ur_bringup ur5_bringup.launch robot_ip:=, I get the following output:

... logging to /home/rkeatin3/.ros/log/5d470f28-5de0-11e4-aa81-fc4dd43d9838/roslaunch-dscl-rosstation-02-13666.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://dscl-rosstation-02:45140/


 * /robot_description
 * /robot_ip_address
 * /rosdistro
 * /rosversion
 * /tf2_buffer_server/buffer_size

    robot_state_publisher (robot_state_publisher/state_publisher)
    tf2_buffer_server (tf2_ros/buffer_server)
    ur_driver (ur_driver/

auto-starting new master
process[master]: started with pid [13683]

setting /run_id to 5d470f28-5de0-11e4-aa81-fc4dd43d9838
process[rosout-1]: started with pid [13696]
started core service [/rosout]
process[robot_state_publisher-2]: started with pid [13708]
process[ur_driver-3]: started with pid [13726]
process[tf2_buffer_server-4]: started with pid [13727]
Traceback (most recent call last):
  File "/opt/ros/hydro/lib/ur_driver/", line 19, in <module>
    from deserialize import RobotState, RobotMode
ImportError: No module named deserialize
[ur_driver-3] process has died [pid 13726, exit code 1, cmd /opt/ros/hydro/lib/ur_driver/ __name:=ur_driver __log:=/home/rkeatin3/.ros/log/5d470f28-5de0-11e4-aa81-fc4dd43d9838/ur_driver-3.log].
log file: /home/rkeatin3/.ros/log/5d470f28-5de0-11e4-aa81-fc4dd43d9838/ur_driver-3*.log

I've been unable to find any posts with the same answer. I checked the roslaunch log file, but it doesn't have any more useful information. Any ideas?

Edit: I'm using hydro, installed from debs.

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ROS version, driver version, from source, from debs, etc (I know some of it is visible in your console copy/paste, but still).

gvdhoorn gravatar image gvdhoorn  ( 2014-10-27 10:25:26 -0500 )edit

I'm not sure what you mean by driver version, but all of my packages should be up-to-date.

rkeatin3 gravatar image rkeatin3  ( 2014-10-27 10:48:01 -0500 )edit

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answered 2014-10-27 12:47:23 -0500

gvdhoorn gravatar image

updated 2014-10-28 04:26:19 -0500

I can't give you any solution right now, but I've created an issue at the universal_robot repository. See universal_robot/issues/134.

Edit: just proxying for the Github issue:

this is a known issue with the currently released (v1.0.3) Hydro debs and will be fixed in the next release. The hydro-devel branch already contains the fix, so if you build the universal_robot repository from source, things should start working again for you.

Alternatively, you could temporarily add the ur_driver directory to your $PYTHONPATH:

export PYTHONPATH=$PYTHONPATH:/opt/ros/hydro/lib/python2.7/dist-packages/ur_driver/

after sourcing your setup.bash (don't forget to remove this once fixed debs have been released).

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Asked: 2014-10-27 09:02:22 -0500

Seen: 316 times

Last updated: Oct 28 '14