Fatal error: Uncaught Error: Class 'Dcat\Admin\Repositories\Repository' not found in E:\xampp\htdocs\www\yunwei\qr250\vendor\dcat\laravel-admin\src\Repositories\QueryBuilderRepository.php:15 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr250\vendor\dcat\laravel-admin\src\Repositories\QueryBuilderRepository.php on line 15