Fatal error: Uncaught Error: Class "Symfony\Component\Config\Loader\DelegatingLoader" not found in /home/microfrlnn/dev/vitrine/vendor/symfony/framework-bundle/Routing/DelegatingLoader.php:28 Stack trace: #0 {main} thrown in /home/microfrlnn/dev/vitrine/vendor/symfony/framework-bundle/Routing/DelegatingLoader.php on line 28