Fatal error: Uncaught Error: Class "Symfony\Component\Config\Loader\FileLoader" not found in /opt/lampp/htdocs/msja/vendor/symfony/routing/Loader/PhpFileLoader.php:32 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/msja/vendor/symfony/routing/Loader/PhpFileLoader.php on line 32