Fatal error: Uncaught Error: Interface "Symfony\Component\Validator\Mapping\Factory\MetadataFactoryInterface" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\validator\Mapping\Factory\LazyLoadingMetadataFactory.php:39 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\validator\Mapping\Factory\LazyLoadingMetadataFactory.php on line 39