Fatal error: Uncaught Error: Call to undefined function env() in E:\xampp\htdocs\www\yunwei\qr250\vendor\dcat\laravel-admin\config\admin.php:68 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr250\vendor\dcat\laravel-admin\config\admin.php on line 68