How can I solve this problem?
Fatal error: Symfony\Component\ClassLoader\DebugUniversalClassLoader::loadClass(): Failed opening required '/path/to/my/symfony/project/file' (include_path='.:/usr/share/php:/usr/share/pear') in '/path/to/my/symfony/project/vendor/symfony/src/Symfony/Component/ClassLoader/DebugUniversalClassLoader.php on line 55
I have PEAR and php5 installed