Fatal error: Uncaught Error: Interface "Symfony\Component\Validator\Mapping\MetadataInterface" not found in C:\AppServ\www\greenhess-storage\vendor\symfony\validator\Mapping\ClassMetadataInterface.php:34 Stack trace: #0 {main} thrown in C:\AppServ\www\greenhess-storage\vendor\symfony\validator\Mapping\ClassMetadataInterface.php on line 34