Fatal error: Uncaught Error: Interface "Symfony\Contracts\Service\ServiceSubscriberInterface" not found in C:\Apache24\htdocs\cw\vendor\symfony\dependency-injection\ServiceSubscriberInterface.php:21 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cw\vendor\symfony\dependency-injection\ServiceSubscriberInterface.php on line 21