Same here. Already tried changing model struct to class, adding public, using var instead of let. Still getting this warning.

So is Apple forcing us to update to the latest version?!! I can not connect iPhone after Apple releases a new version!!! It worked before! And now Xcode gives this crap to me: The current device configuration is unsupported. This iPhone 8 (Model A1863, A1905, A1906, A1907) is running iOS 14.2 (18B92), which is not supported by Xcode 12.1. Domain: com.apple.dtdevicekit Code: 601 Recovery Suggestion: To run on this device, please update to a version of Xcode that supports iOS 14.2. You can download Xcode from the Mac App Store or the Apple Developer website. .......................(sigh)