Fatal error: Uncaught Error: Class 'Symfony\Component\Templating\Helper\Helper' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/media-bundle/Templating/Helper/MediaHelper.php:25 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/media-bundle/Templating/Helper/MediaHelper.php on line 25