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