Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in D:\Apache24\www\api.print.nxytec.cn\back\app\Http\Controllers\ProdCode\MaterialRecode.php:19 Stack trace: #0 {main} thrown in D:\Apache24\www\api.print.nxytec.cn\back\app\Http\Controllers\ProdCode\MaterialRecode.php on line 19