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turtlebot_bringup error - invalid <param> tag [closed]

asked 2013-03-05 05:33:41 -0500

prasanna.kumar gravatar image

I installed turtlebot packages from debs. When I run minimal.launch I get the following error

while processing /opt/ros/groovy/stacks/turtlebot/turtlebot_bringup/launch/includes/_robot.launch:
Invalid <param> tag: Cannot load command parameter [robot_description]: no such command [/opt/ros/groovy/share/xacro/ '/opt/ros/groovy/stacks/turtlebot/turtlebot_description/robots/kobuki_hexagons_kinect.urdf.xacro']. 

Param xml is <param command="$(arg urdf_file)" name="robot_description"/>

I am getting this error after running ubuntu updates this afternoon. I did not get it before the update. Is anyone else getting the same error ?



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Closed for the following reason the question is answered, right answer was accepted by prasanna.kumar
close date 2013-03-11 08:56:03


I never update Ubuntu. This helps a lot ;-)

Chik gravatar image Chik  ( 2013-03-05 17:12:34 -0500 )edit

I have the same error than you, can you keep me up to date if you solve the problem or if a bug fix is released ? Thanks !

CarolineQ gravatar image CarolineQ  ( 2013-03-05 23:14:21 -0500 )edit

@CarolineQ Your advice to update Ubuntu, wasn't it ;) Sure I ll update..

prasanna.kumar gravatar image prasanna.kumar  ( 2013-03-05 23:34:49 -0500 )edit

@prasanna It works for me the first time I did it... But not this time ! Sorry !

CarolineQ gravatar image CarolineQ  ( 2013-03-06 00:38:32 -0500 )edit

New version of xacro has been released yesterday (now version 1.7.3). Download and test it to see if it solves your problem.

bit-pirate gravatar image bit-pirate  ( 2013-03-06 11:46:06 -0500 )edit

I downloaded a new version of xacro doing : "sudo apt-get update" and then "sudo apt-get install ros-groovy-xacro" and it works fine for me now, even with the roslaunch command.

CarolineQ gravatar image CarolineQ  ( 2013-03-06 20:55:42 -0500 )edit

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answered 2013-03-05 12:20:24 -0500

bit-pirate gravatar image

You are probably hitting the bug in the new version of xacro, which has been introduced when catkinizing it.

Have a look at this ticket for more details:

The bug fix should soon be pushed to public.

Please report back, if you are still having issues after the update.

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Guys, I'm sorry to inform you that you need to wait a bit longer for a bug fix. The bug fix in xacro release 1.7.3 only solves the problem of 'rosrun xacro ...', but not the roslaunch issue. Follow this ticket for more details:

bit-pirate gravatar image bit-pirate  ( 2013-03-06 12:33:32 -0500 )edit

@bit-pirate I installed the new xacro release and now the roslaunch works fine except for the laptop battery warning which I have described here -

prasanna.kumar gravatar image prasanna.kumar  ( 2013-03-07 21:00:05 -0500 )edit

@prasanna.kumar Thanks for the info. Just triggered my updates ... PS: Since your question/problem looks to be answered/solved, please mark it accordingly. Thank you!

bit-pirate gravatar image bit-pirate  ( 2013-03-10 13:57:27 -0500 )edit

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Asked: 2013-03-05 05:33:41 -0500

Seen: 2,490 times

Last updated: Mar 05 '13