Fatal error: Uncaught Error: Class 'Whoops\Handler\Handler' not found in E:\xampp\htdocs\www\yunwei\qr251\vendor\spatie\laravel-ignition\src\Renderers\IgnitionWhoopsHandler.php:10 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr251\vendor\spatie\laravel-ignition\src\Renderers\IgnitionWhoopsHandler.php on line 10