Fatal error: Uncaught Error: Class "Sabre\HTTP\Auth\AbstractAuth" not found in D:\xampp\htdocs\pimcore\my-project\vendor\sabre\http\lib\Auth\AWS.php:18 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\sabre\http\lib\Auth\AWS.php on line 18