Fatal error: Uncaught Error: Class 'Symfony\Component\Form\AbstractType' not found in /home/srv1clbr/public_html/sport43app/src/Appointment/AddAttendee/AddAttendeeType.php:23 Stack trace: #0 {main} thrown in /home/srv1clbr/public_html/sport43app/src/Appointment/AddAttendee/AddAttendeeType.php on line 23