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Import error while spawning a robot model in gazebo 8 and ros kinetic

Hello all,

I have been trying to run gazebo 8 with ros-kinetic. Everything works fine until I try to spawn a robot in the world. It gives me the following error:

"Traceback (most recent call last): File "/opt/ros/kinetic/lib/gazeboros/spawnmodel", line 32, in import tf.transformations as tft File "/opt/ros/kinetic/lib/python2.7/dist-packages/tf/init.py", line 28, in from tf2ros import TransformException as Exception, ConnectivityException, LookupException, ExtrapolationException File "/opt/ros/kinetic/lib/python2.7/dist-packages/tf2ros/init.py", line 38, in from tf2py import * File "/opt/ros/kinetic/lib/python2.7/dist-packages/tf2py/init.py", line 38, in from .tf2 import * ImportError: dynamic module does not define module export function (PyInittf2) [spawnurdf-7] process has died [pid 31281, exit code 1, cmd /opt/ros/kinetic/lib/gazeboros/spawnmodel -param robotdescription -urdf -x 3 -y -12 -z 0.5 -model prius _name:=spawnurdf _log:=/home/niranjan/.ros/log/28fa1a56-9cc2-11e8-b69d-d89ef32ba530/spawnurdf-7.log]. log file: /home/niranjan/.ros/log/28fa1a56-9cc2-11e8-b69d-d89ef32ba530/spawnurdf-7*.log".

Any idea what am I missing here?

Thank you.

Asked by niranjan_187 on 2018-08-10 12:50:35 UTC

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Answers

Errors like this are caused by python version problem. Your tf package can only be used by python2, so just change the first line of your spawn_model script: from #! /usr/bin/env python to #! /usr/bin/env python2.7.

Asked by Coder110 on 2019-11-24 22:51:55 UTC

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