Although this question has already been answered. I recently came across the same issue. The more specific answer is that you need to install the Visual Studio 2015 Tools (Preview 2)
:
https://www.microsoft.com/net/download/core
Direct Download:
https://go.microsoft.com/fwlink/?LinkId=827546
Because this wasn’t straight forward and I was working on a 1.1 dotnet core project, I accidentally skipped this step and only installed the Windows SDK
. I reported an issue here: