Warning: require_once(phing/tasks/system/MatchingTask.php) [function.require-once]: failed to open stream: No such file or directory in /var/www/cepas/lib/symfony/vendor/phing/tasks/ext/ZipTask.php on line 22

Fatal error: require_once() [function.require]: Failed opening required 'phing/tasks/system/MatchingTask.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/cepas/lib/symfony/vendor/phing/tasks/ext/ZipTask.php on line 22