Subversion Repositories shark

Error running this command: /usr/local/bin/svn --non-interactive --config-dir /tmp log --xml --verbose -r 1157:1 'file:///home/shark/svn/demos/trunk/oldexamples/kernel/tests.c@1157' --limit 2
svn: E160013: File not found: revision 1157, path '/demos/trunk/oldexamples/kernel/tests.c'