How do I build React Native iOS app to device through Xcode?

Question

I tried building the AwesomeProject app to device. The build succeeds and the splash screen shows, but then I see a red "Could not connect to development server" screen. It says that "Ensure node server is running - run 'npm start' from React root."

It looks like the node server is already running because when I do npm start I get an EADDRINUSE message, saying that the port is already in use.

Answer 1

Accessing development server from device You can iterate quickly on device using development server. To do that, your laptop and your phone have to be on the same wifi network.

1. Open iOS/AppDelegate.m
2. Change the IP in the URL from localhost to your laptop's IP
3. In Xcode select your phone as build target and press "Build and run"

ps:http://facebook.github.io/react-native/docs/runningondevice.html#content