Xcode 26.4 on macOS 26.3.1 cannot pair a real Apple Watch for development. iPhone companion is visible and stable in Devices and Simulators. Watch is paired to iPhone and works normally, but Xcode shows:
CoreDeviceError Code: 4 RemotePairingError Code: 1007 “The device rejected the connection request.” “Ensure the device is paired with this machine.”
What I already tried:
- trusted Mac on iPhone
- re-paired Watch with iPhone
- reconnected iPhone by cable
- reset authorized computers on Watch
- restarted devices
- reopened Devices and Simulators
Result:
- iPhone remains stable
- Watch is seen intermittently or stays reconnecting / rejects pairing
- app logic is otherwise working on iPhone side
Need: steps to restore Watch ↔ Xcode development pairing without further destructive resets.