Fatal error: Uncaught Error: Class 'Symfony\Component\Templating\Helper\Helper' not found in /home/cooplafobq/newplanning/vendor/vich/uploader-bundle/Templating/Helper/UploaderHelper.php:13 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/vich/uploader-bundle/Templating/Helper/UploaderHelper.php on line 13