Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromiseInterface" not found in C:\Apache24\htdocs\cw\vendor\guzzlehttp\promises\src\Coroutine.php:45 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cw\vendor\guzzlehttp\promises\src\Coroutine.php on line 45