Shouldn't these files be cached somewhere so Rider doesn't have to download them every time? Does this indicate that I have a configuration problem somewhere?
After upgrading to Rider 2018.3, I started receiving the messages below (and associated balloon notifications) every time the solution is opened or the Xamarin.Android project is reloaded. The solution consists of a Xamarin.Android project, a Xamarin.iOS project, and a shared library containing common classes.
The company I work for has a Xamarin based solution targeting Android and iOS.