Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Support\Arrayable" not found in C:\Users\Administrator\Desktop\xamp\htdocs\sdk\illuminate\contracts\Support\MessageBag.php:7 Stack trace: #0 {main} thrown in C:\Users\Administrator\Desktop\xamp\htdocs\sdk\illuminate\contracts\Support\MessageBag.php on line 7