Fatal error: Uncaught Error: Class 'Symfony\Component\Templating\Helper\Helper' not found in /home/cooplafobq/newplanning/vendor/liip/imagine-bundle/Templating/Helper/ImagineHelper.php:17 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/liip/imagine-bundle/Templating/Helper/ImagineHelper.php on line 17