How to create a C# host program for a Q# program in Visual Studio Community 2019?

I have been trying to create a C# host program for a Q# program in Visual Studio Community 2019 by following these instructions: https://docs.microsoft.com/en-us/quantum/quickstarts/install-cs?tabs=tabid-vs2019%2Ctabid-csharp.

But when I click "Create", I cannot complete the process, and this message pops up:

I have followed the instructions from the message, have restarted my computer, and have reopened Visual Studio. However, that same message still pops up, and I still cannot create the C# host program.

Any idea?

Thanks.