On Mon, Oct 11, 2010 at 1:26 AM, shahmi wrote: > I have a problem while  running rviz. It occured when I set the Graph Resource Name as 3dls in which it is not a valid name (because started with a number). But then, I do not know how to get it back working as it is supposed. Any thoughts? Below is the command and its output from my terminal. Thanks in advance. > > shah@shah-laptop:~$ rosrun rviz rviz > [ INFO] [1286784560.678061783]: Loading general config from [/home/shah/.rviz/config] > [ INFO] [1286784560.683859846]: Loading display config from [/home/shah/.rviz/display_config] > [ERROR] [1286784565.480174992]: Caught exception while loading: Character [3] is not valid as the first character in Graph Resource Name [3dls].  Valid characters are a-z, A-Z, / and in some cases ~. > [ INFO] [1286784565.487642807]: Saving general config to [/home/shah/.rviz/config] > [ INFO] [1286784565.552436489]: Saving display config to [/home/shah/.rviz/display_config] hi Shahmi, There may be a ticket to file for this issue, but I suspect that you can work around the problem by either: deleting /home/shah/.rviz/display_config; or editing that file to change the string '3dls' to something else. brian.