Subversion annoyances
The most annoying subversion error message:
$ svn up ... svn: Won't delete locally modified directory 'foo/bar' svn: Left locally modified or unversioned files This happens when a subdirectory of 'foo/bar' is removed from the upstream repository, and subversion tries and fails to remove ir locally -- fails because it finds some some files that are listed in svn:ignore (e.g. editor backup files, compiled object files, compiled Python modules).