Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in /home/cgenial/cgenial/vendor/knplabs/knp-snappy-bundle/DependencyInjection/KnpSnappyExtension.php:11 Stack trace: #0 {main} thrown in /home/cgenial/cgenial/vendor/knplabs/knp-snappy-bundle/DependencyInjection/KnpSnappyExtension.php on line 11