Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Extension\Extension' not found in /home/soh-works/www/Stepup_test/vendor/symfony/debug-bundle/DependencyInjection/DebugExtension.php:30 Stack trace: #0 {main} thrown in /home/soh-works/www/Stepup_test/vendor/symfony/debug-bundle/DependencyInjection/DebugExtension.php on line 30