Fatal error: Uncaught Error: Class "GuzzleHttp\Event\AbstractTransferEvent" not found in C:\AppServ\www\greenhess-storage\vendor\guzzlehttp\guzzle\src\Event\AbstractRetryableEvent.php:7 Stack trace: #0 {main} thrown in C:\AppServ\www\greenhess-storage\vendor\guzzlehttp\guzzle\src\Event\AbstractRetryableEvent.php on line 7