Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in /home/ldt/public_html/canvas/udoit/vendor/sensio/framework-extra-bundle/src/DependencyInjection/SensioFrameworkExtraExtension.php:28 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/sensio/framework-extra-bundle/src/DependencyInjection/SensioFrameworkExtraExtension.php on line 28