Fatal error: Uncaught Error: Interface 'Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface' not found in /home/soh-works/www/3good_old/vendor/symfony/serializer/Mapping/Factory/ClassMetadataFactory.php:22 Stack trace: #0 {main} thrown in /home/soh-works/www/3good_old/vendor/symfony/serializer/Mapping/Factory/ClassMetadataFactory.php on line 22