Fatal error: Uncaught Error: Class "Symfony\Component\Filesystem\Filesystem" not found in E:\www\catalog_frey\qgmvc\v1.0\mvc\lib\file.lib.php:7 Stack trace: #0 {main} thrown in E:\www\catalog_frey\qgmvc\v1.0\mvc\lib\file.lib.php on line 7