Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /var/www/crm_killing_ninja/vendor/vich/uploader-bundle/src/DependencyInjection/VichUploaderExtension.php:23 Stack trace: #0 {main} thrown in /var/www/crm_killing_ninja/vendor/vich/uploader-bundle/src/DependencyInjection/VichUploaderExtension.php on line 23