SVN Error – Not a working copy
I got into a similar situation (svn: 'papers' is not a working copy directory) a different way, so I thought I'd post my battle story...
I can’t add a directory because Subversion says it’s “already under version control”.
The directory you're trying to add already contains a .svn subdirectory, but it's from a different repository than the directory to which you're trying to...