Fatal error: Uncaught Error: Class "Doctrine\ORM\Query\TreeWalkerAdapter" not found in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\orm\src\Tools\Pagination\CountWalker.php:20 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\orm\src\Tools\Pagination\CountWalker.php on line 20