Fatal error: Uncaught Error: Interface "League\Fractal\Serializer\Serializer" not found in D:\programs\xampp\htdocs\antares-backend-stage\vendor\league\fractal\src\Serializer\SerializerAbstract.php:18 Stack trace: #0 {main} thrown in D:\programs\xampp\htdocs\antares-backend-stage\vendor\league\fractal\src\Serializer\SerializerAbstract.php on line 18