Having trouble converting my .Net Core 2.1 project to .Net Core 2.0. I changed the target build type in my project solution properties as well as target framework in my .csproj file. Visual Studio will not let me build this application because the project is still inherently .Net Core 2.1.
I've had a similar issue recently. Cleared my packages folder and vs cache. Restarted vs, and everthing did build fine.