Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Mapping\Loader\LoaderInterface" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\serializer\Mapping\Loader\AnnotationLoader.php:33 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\serializer\Mapping\Loader\AnnotationLoader.php on line 33