Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in /home/cooplafobq/newplanning/vendor/vich/uploader-bundle/DataCollector/MappingCollector.php:10 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/vich/uploader-bundle/DataCollector/MappingCollector.php on line 10