Fatal error: Uncaught Error: Interface "pvc\interfaces\struct\collection\CollectionInterface" not found in I:\www\pvcContainer\vendor\pvc\interfaces\src\struct\tree\node\TreenodeCollectionInterface.php:12 Stack trace: #0 {main} thrown in I:\www\pvcContainer\vendor\pvc\interfaces\src\struct\tree\node\TreenodeCollectionInterface.php on line 12