Fatal error: Uncaught Error: Class "Microsoft\Graph\Generated\BaseGraphClient" not found in C:\xampp\htdocs\londoncityroom\vendor\microsoft\microsoft-graph\src\GraphServiceClient.php:28 Stack trace: #0 {main} thrown in C:\xampp\htdocs\londoncityroom\vendor\microsoft\microsoft-graph\src\GraphServiceClient.php on line 28