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Caught exception while loading: Character [-]

cob
rviz

asked 2011-09-26 20:50:33 -0500

ZdenekM

704 ●29 ●42 ●52

Hello,

today I made update of ROS (Ubuntu 11.04, ROS Electric from deb repo), run "roslaunch cob_bringup sim.launch" and then "rosrun rviz rviz", which gave me this error:

[ERROR] [1317112938.826534360, 19.093000000]: Caught exception while loading: Character [-] at element [4] is not valid in Graph Resource Name [cob3-3].  Valid characters are a-z, A-Z, 0-9, / and _.

Before update if worked fine. I'm using git version of cob_simulation stack (with env. variables ROBOT=cob3-2, ROBOT_ENV=ipa-kitchen, SIMX=-r).

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answered 2011-12-31 12:52:00 -0500

This post is a wiki. Anyone with karma >75 is welcome to improve it.

I expect that some of the launch files are using the ROBOT environment variable in the node names to avoid name collisions.

A dash '-' is not a valid name for a node. This has always been the policy. I believe that in Electric the parser is now stricter about enforcing it.

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Asked: 2011-09-26 20:50:33 -0500

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Last updated: Dec 31 '11

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Caught exception while loading: Character [-]