On Fri, Jun 11, 2010 at 8:34 AM, shahmi <alfarobi0161@yahoo.com> wrote:
>
> BTW, after running the command that you have given, it returned the following:
>
> svn: Failed to add directory '/home/shah/ros/ros/core/roscpp/src/roscpp': an unversioned directory of the same name already exists

That's a limitation of Subversion.  In this situation you should
manually delete the offending directory,
/home/shah/ros/ros/core/roscpp/src/roscpp, then do the update again.

	brian.