Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\TaskQueueInterface" not found in D:\xampp\htdocs\ebaymotors_order\vendor\guzzlehttp\promises\src\TaskQueue.php:18 Stack trace: #0 {main} thrown in D:\xampp\htdocs\ebaymotors_order\vendor\guzzlehttp\promises\src\TaskQueue.php on line 18