Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in /home/lafaamicps/www/symfony/vendor/knplabs/knp-menu-bundle/Knp/Bundle/MenuBundle/DependencyInjection/KnpMenuExtension.php:10 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/knplabs/knp-menu-bundle/Knp/Bundle/MenuBundle/DependencyInjection/KnpMenuExtension.php on line 10