Fatal error: Uncaught Error: Interface "Psr\Http\Message\UploadedFileInterface" not found in D:\Apache24\www\project\Backstage\vendor\guzzlehttp\psr7\src\UploadedFile.php:12 Stack trace: #0 {main} thrown in D:\Apache24\www\project\Backstage\vendor\guzzlehttp\psr7\src\UploadedFile.php on line 12