Fatal error: Uncaught Error: Trait "Symfony\Component\DependencyInjection\Compiler\PriorityTaggedServiceTrait" not found in C:\wamp64\houda\vendor\symfony\routing\DependencyInjection\RoutingControllerPass.php:21 Stack trace: #0 {main} thrown in C:\wamp64\houda\vendor\symfony\routing\DependencyInjection\RoutingControllerPass.php on line 21