Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /var/www/bethesda/vendor/knplabs/knp-snappy-bundle/src/DependencyInjection/KnpSnappyExtension.php:11 Stack trace: #0 {main} thrown in /var/www/bethesda/vendor/knplabs/knp-snappy-bundle/src/DependencyInjection/KnpSnappyExtension.php on line 11