Fatal error: Uncaught Error: Interface "Symfony\Component\Validator\MetadataFactoryInterface" not found in C:\AppServ\www\greenhess-storage\vendor\symfony\validator\Mapping\Factory\MetadataFactoryInterface.php:21 Stack trace: #0 {main} thrown in C:\AppServ\www\greenhess-storage\vendor\symfony\validator\Mapping\Factory\MetadataFactoryInterface.php on line 21