Ionic Native tried accessing the GoogleMaps plugin but it's not installed

I am currently trying to implement GoogleMaps through ionic. I am a total beginner, so please beware! I am getting an error:

console.warn: Native: tried accessing the GoogleMaps plugin but it's not installed. 

whenever I run

ionic cordova build ios
ionic cordova emulate ios -lc

My code within home.ts looks as follows:

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';

import { GoogleMaps, GoogleMap, GoogleMapsEvent, LatLng } from '@ionic-native/google-maps';


@Component({
  selector: 'page-home',
  templateUrl: 'home.html',
})
export class HomePage {

  map: GoogleMap;

  constructor(public navCtrl: NavController, public geolocation: Geolocation, private googleMaps: GoogleMaps) {
    console.log("Home page creator loaded");
  }

  ngAfterViewInit() {
    console.log("ngAfterViewInit loaded");

    let mapEle = document.getElementById('map');
    let location = new LatLng(-34.9290,138.6010);
    let mapOpt = {
      center: {lat: -34.397, lng: 150.644},
      zoom: 8,
    };

    this.map = this.googleMaps.create(mapEle, mapOpt);
    this.map.one(GoogleMapsEvent.MAP_READY).then(() => {
      console.log("Map seems ready!");
    });
  }
}

Mostly adapted to what the ionic-native GoogleMaps tutorial suggests. I have repeated uninstall and installed the ionic-native google-maps plugin again, but it just doesn't seem to work. Any idea what I might be doing wrong?