Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in /home/soh-works/www/Stepup_test/vendor/symfony/security-bundle/DependencyInjection/SecurityExtension.php:44 Stack trace: #0 {main} thrown in /home/soh-works/www/Stepup_test/vendor/symfony/security-bundle/DependencyInjection/SecurityExtension.php on line 44