Fatal error: Uncaught Error: Interface "Symfony\Component\Config\Definition\ConfigurationInterface" not found in /home/leathr/event.lea.therasse.mmi-velizy.fr/mmievent3/vendor/symfony/config/Definition/Configuration.php:25 Stack trace: #0 {main} thrown in /home/leathr/event.lea.therasse.mmi-velizy.fr/mmievent3/vendor/symfony/config/Definition/Configuration.php on line 25