Fatal error: Uncaught Error: Class 'Symfony\Component\Form\Exception\InvalidArgumentException' not found in /home/soh-works/www/Stepup_test/vendor/symfony/form/Exception/InvalidConfigurationException.php:14 Stack trace: #0 {main} thrown in /home/soh-works/www/Stepup_test/vendor/symfony/form/Exception/InvalidConfigurationException.php on line 14