Fatal error: Uncaught Error: Class "Symfony\Component\Form\Test\FormIntegrationTestCase" not found in /home/ldt/public_html/canvas/udoit/vendor/symfony/form/Test/FormPerformanceTestCase.php:24 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/symfony/form/Test/FormPerformanceTestCase.php on line 24