ErrorDomain=WCErrorDomain Code=7007 "WatchConnectivity session on paired device is not reachable." Userinfo={NSLocalizedDescription=WatchConnectivity session on paired device is not reachable.} Sometimes it will work for 1 time if I uninstall your app, then reinstall, and have the app open and screen unlocked on the iPhone. If I close the iPhone app, it immediately throws the above error on the watch.