Xcode 12 doesn't support new iOS version

Question

Trying to build on iPhone, but here's what it shows..

How to fix it?

Answer 1

1. Check out this repo https://github.com/iGhibli/iOS-DeviceSupport

2. Download this folder:

   

3. Move it into:

   /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

   

4. Close Xcode and open again.

5. Build and run 😀

Answer 2

Just to run the damn thing, I managed to do this without having to download any new profiles as per the other answer. Just took 14.4 renamed to 14.6 and it worked on Catalina XCode 12.4.