Fatal error: Uncaught Error: Class "GuzzleHttp\Event\AbstractRequestEvent" not found in C:\AppServ\www\greenhess-storage\vendor\guzzlehttp\guzzle\src\Event\ProgressEvent.php:17 Stack trace: #0 {main} thrown in C:\AppServ\www\greenhess-storage\vendor\guzzlehttp\guzzle\src\Event\ProgressEvent.php on line 17