Subversion Repositories slepc-dev

Error running this command:

svn --non-interactive --config-dir /tmp log --xml --verbose -r1670:1 --limit 2 'file://localhost/home/slepc/svn/branches/slepc-3_1-branch/COPYING@1670'

File not found: revision 1670, path '/branches/slepc-3_1-branch/COPYING'