Subversion Repositories eduke32

Error running this command: svn --non-interactive --config-dir /tmp/websvn list --xml -r 4423 'file:///var/svn-repos/eduke32/source/duke3d@8488'
E195012: Unable to find repository location for 'file:///var/svn-repos/eduke32/source/duke3d' in revision 4423