Fatal error: Uncaught Error: Interface "Symfony\Component\Form\DataMapperInterface" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\form\Extension\Core\DataMapper\DataMapper.php:26 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\form\Extension\Core\DataMapper\DataMapper.php on line 26