Fatal error: Uncaught Error: Class "Symfony\Component\Form\AbstractType" not found in /var/www/html/immobilier-des-particuliers.fr/src/Form/RegistrationFormType.php:17 Stack trace: #0 {main} thrown in /var/www/html/immobilier-des-particuliers.fr/src/Form/RegistrationFormType.php on line 17