Fatal error: Uncaught Error: Class 'Dcat\Admin\Widgets\Widget' not found in E:\xampp\htdocs\www\yunwei\qr251\vendor\dcat\laravel-admin\src\Widgets\Terminal.php:8 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr251\vendor\dcat\laravel-admin\src\Widgets\Terminal.php on line 8