Subversion Repositories Scribus

Error running this command: /usr/local/bin/svn --non-interactive --config-dir /tmp log --xml --verbose -r 16956:1 'file:///svn/Scribus/branches/ScribusOIF/scribus/ui/propertywidget_group.cpp@16956' --limit 2
svn: E160013: File not found: revision 16956, path '/branches/ScribusOIF/scribus/ui/propertywidget_group.cpp'