Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Model" not found in C:\xampp\htdocs\hannoole\POS\app\Models\Purchase\PurchaseOrder.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hannoole\POS\app\Models\Purchase\PurchaseOrder.php on line 20