This is probably a question for which I dug my own hole, but here it is. Somewhere along the line after attempting to add a Class Library Project to my Solution (which previously contained only a single Xamarin.Android Project) I ended up changing some settings that give me the following error:
Project XXX is not compatible with monoandroid 10.0 (MonoAndroid, Version=v10.0). Project XXX supports: netcoreapp3.1 (.NETCoreApp, Version=v3.1)
My app does not use any complex or recently added features, so what version I make it right now is not of high significance, although I do plan on updating & compiling it for the latest versions of .NET & Android when Android 11 is released near the end of 2021. What do I need to do to make the version settings in the Class Library & Xamarin.Android App work well together? Thanks.