Replacing the contents of my previous post regarding VS 15.3 support of F#.
"For long time .NET developers, a common question is "when will Visual Studio support F# .NET Core projects". We’re working hard to get this functionality ready, but unfortunately, we’re not quite happy enough with the quality in the 15.3 update to announce that it’s fully supported. While Visual Studio 2017 version 15.3 is able to open the new F# .NET Core projects, build, and debug them, IntelliSense does not yet work correctly"
From
https://blogs.msdn.microsoft.com/dotnet/2017/08/14/f-and-net...