Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\ConfigurableExtension" not found in /home/u6668910/public_html/lab/vendor/egeloen/ckeditor-bundle/DependencyInjection/IvoryCKEditorExtension.php:25 Stack trace: #0 {main} thrown in /home/u6668910/public_html/lab/vendor/egeloen/ckeditor-bundle/DependencyInjection/IvoryCKEditorExtension.php on line 25