react-native/Examples/SampleApp/iOS/main.jsbundle

// Offline JS
// To re-generate the offline bundle, run this from the root of your project:
//
// $ react-native bundle --minify
//
// See http://facebook.github.io/react-native/docs/runningondevice.html for more details.

throw new Error('Offline JS file is empty. See iOS/main.jsbundle for instructions');