Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in /home/eberhardschwarze/public_html/vendor/doctrine/doctrine-cache-bundle/DependencyInjection/DoctrineCacheExtension.php:19 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/doctrine/doctrine-cache-bundle/DependencyInjection/DoctrineCacheExtension.php on line 19