Fatal error: Uncaught Error: Class "Microsoft\Graph\Core\BaseGraphRequestAdapter" not found in C:\xampp\htdocs\batuhansunar\vendor\microsoft\microsoft-graph\src\GraphRequestAdapter.php:24 Stack trace: #0 {main} thrown in C:\xampp\htdocs\batuhansunar\vendor\microsoft\microsoft-graph\src\GraphRequestAdapter.php on line 24