Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /home/ldt/public_html/canvas/udoit/vendor/knpuniversity/oauth2-client-bundle/src/DependencyInjection/KnpUOAuth2ClientExtension.php:87 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/knpuniversity/oauth2-client-bundle/src/DependencyInjection/KnpUOAuth2ClientExtension.php on line 87