Xamarin.Android warning XA0105

Issue

The Xamarin.Android build will emit a XA0105 warning if it detects that one of the referenced libraries or projects is using a $(TargetFrameworkVersion) higher than the project being built. Using libraries which are targeting a higher $(TargetFrameworkVersion) can cause unexpected results at runtime, especially when running on older devices.

Solution

The fix is to increase the $(TargetFrameworkVersion) for your project to be equal to or higher than the referenced library projects.