Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Model" not found in D:\laragon\www\teeu\vendor\kalnoy\nestedset\tests\models\DuplicateCategory.php:3 Stack trace: #0 {main} thrown in D:\laragon\www\teeu\vendor\kalnoy\nestedset\tests\models\DuplicateCategory.php on line 3