Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Extension\Extension' not found in /home/itscm/dev.its.cm/itsgateway/vendor/vich/uploader-bundle/src/DependencyInjection/VichUploaderExtension.php:18 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/itsgateway/vendor/vich/uploader-bundle/src/DependencyInjection/VichUploaderExtension.php on line 18