Fatal error: Uncaught Error: Interface 'Sonata\MediaBundle\Model\GalleryInterface' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/media-bundle/Model/Gallery.php:15 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/media-bundle/Model/Gallery.php on line 15