Hi You are using 2019 right. 2017 can't run 3.0. If you are using 2019. Download the installer again and the add the package from the list.
Davy On Fri, 27 Sep 2019, 06:18 Greg Keogh, <gfke...@gmail.com> wrote: > Folks, > > I'm keen to experiment with C# 8 features and get familiar early, but I > can't get any project to use it. In Visual Studio 2019 16.2.3 I've tried to > create Standard, Core and Framework projects of all the latest versions, > then set the Build Advanced Language Version to 8 or preview, but it's > never available. > > I thought Core 3.0 projects could use C# 8, but the highest choice I have > is 2.2. So I installed 3.0 manually and dotnet --list shows me the > following (truncated) as installed, but I never see 3.0 list in target > frameworks. > > >dotnet --list-runtimes > Microsoft.AspNetCore.App 3.0.0 [C:\Program > Files\dotnet\shared\Microsoft.AspNetCore.App] > Microsoft.NETCore.App 3.0.0 [C:\Program > Files\dotnet\shared\Microsoft.NETCore.App] > Microsoft.WindowsDesktop.App 3.0.0 [C:\Program > Files\dotnet\shared\Microsoft.WindowsDesktop.App] > >dotnet --list-sdks > 3.0.100 [C:\Program Files\dotnet\sdk] > > So I have two issues: (1) I can't pick Core 3.0 Framework (2) How on earth > do I coax C# 8 into action? > > Any advice would be most welcome. Perhaps there are really strict > conditions or dependencies I'm not aware of. > > Cheers, > *Greg* > > P.S. Public holiday in Melbourne for some sort of ball game. A horse race > I can understand, but this? >
