F8app: Application F8v2 has not been registered.

[imchenying]

2016-04-19 13:05:03.287 [fatal][tid:com.facebook.React.RCTExceptionsManagerQueue] Unhandled JS Exception: Application F8v2 has not been registered. This is either due to a require() error during initialization or failure to call AppRegistry.registerComponent.

[frantic]

Are you sure your packager is started from the correct folder? Try this:

$ killall node
$ react-native run-ios
$ npm start

[liubobuzhidao]

check your AppRegistry.registerComponent("moduleName",()=>App); "moduleName" is same with rootView.startReactApplication(reactInstanceManager,’moduleName’,null)!if not same,modify it.