Fatal error: Uncaught Error: Class "Symfony\Component\Form\Test\FormIntegrationTestCase" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\form\Test\FormPerformanceTestCase.php:24 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\form\Test\FormPerformanceTestCase.php on line 24