Fatal error: Uncaught Error: Class 'Illuminate\Database\Eloquent\Model' not found in E:\xampp\htdocs\www\yunwei\qr250\vendor\dcat\laravel-admin\tests\Models\Tree.php:9 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr250\vendor\dcat\laravel-admin\tests\Models\Tree.php on line 9