Fatal error: Uncaught Error: Interface "Saloon\Contracts\MultipartBodyFactory" not found in D:\www\vendor\saloonphp\saloon\src\Http\Senders\Factories\GuzzleMultipartBodyFactory.php:13 Stack trace: #0 {main} thrown in D:\www\vendor\saloonphp\saloon\src\Http\Senders\Factories\GuzzleMultipartBodyFactory.php on line 13