Unable to create new Q# project using Microsoft Quantum Development Kit

Question

Having just installed the Microsoft Quantum Development Kit, creating a new Q# project fails with the obscure message:

Argument can't be null: Parameter name: node.

(I am using a clean install of Visual Studio 2017 Community, with latest updates applied.)

Screen shot illustrating how to reproduce the problem:

And the resultant error message:

Does anyone know what causes this error, and how it may be resolved?

Answer 1

I had a similar issue (also with VS Community 2017 and Q#) - a repair of VS fixed the issue for me and it's worked fine since.