Fatal error: Uncaught Error: Interface 'Symfony\Component\Config\Definition\ConfigurationInterface' not found in /home/lafaamicps/www/symfony/vendor/knplabs/knp-gaufrette-bundle/Knp/Bundle/GaufretteBundle/DependencyInjection/MainConfiguration.php:14 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/knplabs/knp-gaufrette-bundle/Knp/Bundle/GaufretteBundle/DependencyInjection/MainConfiguration.php on line 14