Fatal error: Uncaught Error: Class "Symfony\Component\Form\AbstractType" not found in /home/zdpktgd/ptc/src/Form/FormType/Planning/NouveauPlanningFormType.php:22 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/src/Form/FormType/Planning/NouveauPlanningFormType.php on line 22