Ionic-native bunch of warnings of cannot resolve files?

Ionic Framework ionic-v3
3

In the exact moment i used this as the docs say those warnings pop up, also could it have to do with i using webpack as the bundler?:

import {Geolocation} from 'ionic-native'
...
constructor(...) {
    Geolocation.getCurrentPosition({
      enableHighAccuracy: true,
      timeout: 5000
    })
    .then((resp) => {
      //resp.coords.latitude
      //resp.coords.longitude
      this.conf.showAlert({
        title: 'GeoLocation: ',
        template: `Coords: ${Util.JSONStringify({ latitude: resp.coords.latitude, longitude: resp.coords.longitude }, null, 2)}`
      })
    }, (err) => {
      console.log(err)
      this.conf.showAlert({
        title: 'Error obteniendo la geolocalización',
        template: `Razon ${Util.JSONStringify(err, null, 2) }`
      })
    })
}