Fatal error: Uncaught Error: Class "Doctrine\Common\Collections\AbstractLazyCollection" not found in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\orm\src\PersistentCollection.php:43 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\orm\src\PersistentCollection.php on line 43