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