Fatal error: Uncaught Error: Interface 'Symfony\Component\Config\Resource\SelfCheckingResourceInterface' not found in C:\Apache24\htdocs\cwbts\vendor\symfony\config\Resource\ReflectionClassResource.php:23 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cwbts\vendor\symfony\config\Resource\ReflectionClassResource.php on line 23