Ionic-native/network-interface, gives error the 'plugin not installed'?

I am using ionic-native/network-interface for getting the ip address of wifi I am connected with but It gives error Plugin not installed but I have installed it using official documentation.

This is the code I have written

export class HomePage {

constructor(public navCtrl: NavController, private networkInterface: NetworkInterface ) {


Error: plugin not installed

And I have addeed NetworkInterface in the providers in app.module.ts