Fatal error: Uncaught Error: Class "Symfony\Bundle\MakerBundle\Doctrine\BaseCollectionRelation" not found in I:\www\picman\vendor\symfony\maker-bundle\src\Doctrine\RelationOneToMany.php:20 Stack trace: #0 {main} thrown in I:\www\picman\vendor\symfony\maker-bundle\src\Doctrine\RelationOneToMany.php on line 20