How to get local ip in Ionic 2?

I have a problem with ionic 2 and network cordova plugin, I am already installing the plugin and in home.ts I declare a variable with the same name, type any, to get the ip address, I see the tutorial of this plugin on github, but in my the application is not working, can you help me?

home.ts:

declare var networkinterface:any;
@Component({
selector: 'page-home',
templateUrl: 'home.html',
providers: [NodeProvider]
})
export class HomePage {
 public ip = "";

constructor(public navCtrl: NavController, public loadCtrl:   LoadingController, public nodeProvider: NodeProvider, public alertCtrl: AlertController) {

}

ionViewDidLoad(){
networkinterface.getIPAddress(function (ip) {
    console.log((ip));
});

      

        
        
        
      

    

}

And the ionic errors are throwing me: