Subversion Repositories bacoAlunos

Error running this command: svn --non-interactive --config-dir /tmp log --xml --quiet -r 500:1 'file:///SVN/bacoAlunos/trunk/impl/src/java/pt/estgp/estgweb/filters@500' --limit 40
svn: File not found: revision 500, path '/trunk/impl/src/java/pt/estgp/estgweb/filters'