Fatal error: Uncaught Error: Call to undefined function Symfony\Component\Serializer\Mapping\Factory\trigger_deprecation() in /media/jean/learning/huagai/drupal/vendor/symfony/serializer/Mapping/Factory/CompiledClassMetadataFactory.php:19 Stack trace: #0 {main} thrown in /media/jean/learning/huagai/drupal/vendor/symfony/serializer/Mapping/Factory/CompiledClassMetadataFactory.php on line 19