Getting 'undefined' when running on iOS

Returns undefined when trying to print out version number on iOS device:

console.log('versionNumber ', VersionNumber) {appVersion: undefined, buildVersion: undefined, bundleIdentifier: undefined}

Tested on iOS 11.4 iPhone 8 (simulator and device)

[jniac]

@karaoak +1

undefined appears when the pod is not installed

via CLI :

$ yarn add react-native-version-number
...
$ react-native link
... # some logs eg: rnpm-install info Linking react-native-version-number ios dependency

then install pods

$ cd ios
$ pod install
... # some logs eg: Installing react-native-version-number (0.3.4)

then re-build the app from XCode

[karaoak]

Please follow step 1 and 2 https://facebook.github.io/react-native/docs/linking-libraries-ios.html#manual-linking to link the iOS react-native-version-number native iOS lib by hand.

At step 1 drag the ./node_modules/react-native-version-number/ios/RNVersionNumber.xcodeproj to your iOS project in XCode as per manual.