I have an app that was built using Xamarin.Forms 1.0. I used Xamarin Studio migration to convert it to Unified API. First it didn't compile, but I've found a blog post that recommended to re-install its NuGet packages. I removed and installed again Xamarin.Forms, now it compiles but crash on start with the MissingMethod Exception complaining about UIKit.UINavigationBar.SetTitleTextAttributes. The exception occurs inside FinishedLaunching override when it calls base.FinishedLaunching.
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