Fatal error: Uncaught Error: Interface 'Symfony\Contracts\Service\ServiceSubscriberInterface' not found in C:\Apache24\htdocs\cwbts\vendor\symfony\framework-bundle\Controller\AbstractController.php:55 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cwbts\vendor\symfony\framework-bundle\Controller\AbstractController.php on line 55