Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in E:\www\frey\qgmvc\v1.0\composer\vendor\symfony\cache\DataCollector\CacheDataCollector.php:27 Stack trace: #0 {main} thrown in E:\www\frey\qgmvc\v1.0\composer\vendor\symfony\cache\DataCollector\CacheDataCollector.php on line 27