The project cannot be compiled.

[WangElsie]

The project cannot be compiled with the following error: (VS2015)
Cannot apply indexing with [] to an expression of type 'XmlNodeList'.
CS1660 Cannot convert lambda expression to type 'TypedEventHandler<ToastNotification, object>' because it is not a delegate type.
CS1545 Property, indexer, or event 'ToastNotification.Dismissed' is not supported by the language; try directly calling accessor methods 'ToastNotification.add_Dismissed(TypedEventHandler<ToastNotification, ToastDismissedEventArgs>)' or 'ToastNotification.remove_Dismissed(EventRegistrationToken)'
and so on.