Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in /home/soh-works/www/Stepup_test/vendor/sensio/framework-extra-bundle/src/DependencyInjection/SensioFrameworkExtraExtension.php:28 Stack trace: #0 {main} thrown in /home/soh-works/www/Stepup_test/vendor/sensio/framework-extra-bundle/src/DependencyInjection/SensioFrameworkExtraExtension.php on line 28