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move_base vs geometry_msgs/PoseStamped md5 error, Electric, deb-install

asked 2011-12-15 00:55:27 -0500

tom

1079 ●39 ●55 ●65

I've just been trying to run (for the first time, so maybe I just set something wrong) move_base together with gmapping on ROS Electric (on Ubuntu 10.04). As soon as move_base goes up, an error appears:

[ERROR] [1323959697.184014051]: Client [/move_base] wants topic /move_base/goal 
to have datatype/md5sum [move_base_msgs/MoveBaseActionGoal/660d6895a1b9a16dce51fbdd9a64a56b], 
but our version has [geometry_msgs/PoseStamped/d3812c3cbc69362b77dc0b19b345f8f5]. 
Dropping connection.

I've installed all ROS packages via apt-get. There has been some update today, so maybe some of the packages weren't rebuilt properly. Has anyone else noticed this problem?

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answered 2011-12-15 01:54:12 -0500

michikarg
2108 ●19 ●37 ●52 http://hcai.in.tum.de/...

It seems like you´re somewhere mixing the actionlib-interface of move_base with the move_base_simple topic which expects to receive a geometry_msgs/PoseStamped. Are you running rviz and setting a goal-pose for the robot with it? If so, open the Tool Properties and (View-> Tool Properties) and set 2D Nav Goal to "move_base_simple"