I'm stepping across the same problem. I already filled up bug report: FB13278576. @eskimo Yes, Xcode 15 properly prints the warning of IPHONEOS_DEPLOYMENT_TARGET set to iOS 11 vs Xcode 15 requiring minimum iOS 12. However, because this is just a warning, I'd expect the app to run with no problem on any iOS from 12.0 to 17. Instead, it crashes when hitting any symbol from Network lib. I attached the crash report to this post. Repro steps: Create an Xcode 14 project, chose iOS 11 for IPHONEOS_DEPLOYMENT_TARGET. Adjust the app's startup code to build for iOS 11. Add some code that uses the Network module, like: import Network if #available(iOS 12.0, *) { _ = NWEndpoint.Host("example.com") } Open this project in Xcode 15.0. Run it on device with iOS prior to 17.0. The app will crash on NWEndpoint.Host("example.com"). Now, I understand that the problem is surfaced by following: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 11.0, but the range of supported deployment target versions is 12.0 to 17.0.99. but either the severity of this message is wrong (it is a build warning, not error) or there is a problem with loading Network lib in explained setup. We're particularly hit by this issue as a vendor lib developers. Because our library depends on Network and our customers build it from source code, we can't enforce all of them to fix their IPHONEOS_DEPLOYMENT_TARGET when migrating from Xcode 14 to Xcode 15. They ignore the warning and report the crash to us. X14AppForOS11-2023-10-16-153400.txt

I've encountered the same issue and have filed a FB16488816. Minimal code for this problem is: import SwiftUI struct ContentView: View { var body: some View { NavigationView { List { Button("Tap Me") { print("Button action fired") } .simultaneousGesture( TapGesture().onEnded { print("Custom gesture fired") } ) } .navigationTitle("Gesture Collision") } } } Expected Behaviour: Both print("Button action fired") and print("Custom gesture fired") should execute. Actual Behaviour: Only the custom gesture fires. The button action is completely suppressed. This also affects NavigationLink, breaking navigation when a tap gesture is attached. If anyone has a workaround beyond using programmatic navigation or restructuring views, I'd love to hear it. Otherwise, I hope Apple acknowledges and addresses this soon.