Fatal error: Uncaught Error: Interface 'Symfony\Component\Form\FormInterface' not found in /home/soh-works/www/Stepup_test/vendor/symfony/form/Test/FormInterface.php:16 Stack trace: #0 {main} thrown in /home/soh-works/www/Stepup_test/vendor/symfony/form/Test/FormInterface.php on line 16