Fatal error: Uncaught Error: Interface "Doctrine\Common\Collections\Collection" not found in E:\www\frey\qgmvc\v1.0\composer\vendor\doctrine\collections\lib\Doctrine\Common\Collections\ArrayCollection.php:40 Stack trace: #0 {main} thrown in E:\www\frey\qgmvc\v1.0\composer\vendor\doctrine\collections\lib\Doctrine\Common\Collections\ArrayCollection.php on line 40