Fatal error: Uncaught Error: Interface "Symfony\Contracts\Service\ServiceSubscriberInterface" not found in /home/marcgron/www/SSA/v2/vendor/symfony/framework-bundle/Controller/ControllerHelper.php:58 Stack trace: #0 {main} thrown in /home/marcgron/www/SSA/v2/vendor/symfony/framework-bundle/Controller/ControllerHelper.php on line 58