Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Loader\FileLoader' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/admin-bundle/Route/AdminPoolLoader.php:26 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/admin-bundle/Route/AdminPoolLoader.php on line 26