Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Model" not found in D:\Apache24\www\api.print.nxytec.cn\back\app\Models\ProdCode\MaterialRecordPrint.php:12 Stack trace: #0 {main} thrown in D:\Apache24\www\api.print.nxytec.cn\back\app\Models\ProdCode\MaterialRecordPrint.php on line 12