Sorry after above solution this will not work inside unity! For me it resolved after upgrading macOS and Xcode to latest version...

I ran into this error while working with Apple GameKit in Unity: : Cannot locate the "/NativeLibraries~" folder for GameKit. This may be due to a build failure. Skipping remaining steps. After spending hours trying to fix it, I finally found a simple workaround that worked for me 👇 ✅ Solution: Go to: /Users/<name>/Downloads/unityplugins-main/plug-ins/Apple.Core/Apple.Core_Unity/Assets/Apple.Core/NativeLibraries~ Copy the entire NativeLibraries~ folder to: /Users/social/Downloads/unityplugins-main/plug-ins/Apple.GameKit/Apple.GameKit_Unity/Assets/Apple.GameKit/ Rebuild GameKit — and it should build successfully now 🎉 Hopefully, this saves someone else the hours I spent debugging it!