Fatal error: Uncaught Error: Class "App\Models\BasicModel" not found in D:\Apache24\www\xyx_mes\back\backstage-of-xinyaxuan-mes\app\Models\Formula.php:6 Stack trace: #0 {main} thrown in D:\Apache24\www\xyx_mes\back\backstage-of-xinyaxuan-mes\app\Models\Formula.php on line 6