Fatal error: Uncaught Error: Interface 'Symfony\Component\Serializer\Mapping\AttributeMetadataInterface' not found in /home/rykfgln/www/4.ta.a/vendor/symfony/serializer/Mapping/AttributeMetadata.php:21 Stack trace: #0 {main} thrown in /home/rykfgln/www/4.ta.a/vendor/symfony/serializer/Mapping/AttributeMetadata.php on line 21