Microsoft Graph ChatMessage Namespace Missing in C#
问题 I'm following the Microsoft Graph tutorial to create and send a chat message to a Microsoft Teams channel from C#. However, I'm getting an error when following the first example when trying to create a ChatMessage object. ( var chatMessage = new ChatMessage... ) The error is: The type or namespace name 'ChatMessage' could not be found (are you missing a using directive or assembly reference?) I've added the following references to my project already but none of them seem to contain the