Fatal error: Uncaught Error: Interface "Psr\Http\Message\StreamInterface" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\guzzlehttp\psr7\src\Stream.php:12 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\guzzlehttp\psr7\src\Stream.php on line 12