I'm trying to add a WPF User Control Library to my existing .NET Framework 4.7 Winforms solution to add a little WPF Interoperability. The new project is defaulted to the target framework ".NET Core 3.1" and the only other options are ".NET Core 3.0" and ".NET 5.0". All the other projects in this solution are set to ".NET Framework 4.7" so I think that's why I'm having some issues. Can't I create a new project targeted to ".NET Framework 4.7" even if I can't change a .NET Core project to it? It's the same even if I create a new winforms project.
