Fatal error: Uncaught Error: Interface "Symfony\Component\Form\FormBuilderInterface" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\form\Test\FormBuilderInterface.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\form\Test\FormBuilderInterface.php on line 16