Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Mapping\Loader\AnnotationLoader" not found in C:\laragon\www\sfomantic\vendor\symfony\validator\Mapping\Loader\AttributeLoader.php:21 Stack trace: #0 {main} thrown in C:\laragon\www\sfomantic\vendor\symfony\validator\Mapping\Loader\AttributeLoader.php on line 21