TouchID Error : "Uncaught (in promise): Error

I am using the examples for Touch ID (code below). Everything looks fine, except that on the device I see a black screen and in the browser I get an “Uncaught (in promise): Error: No Provider for TouchID!”

Any suggestions?

import { Component } from '@angular/core';
import { NavController,Platform } from 'ionic-angular';
import { TouchID } from '@ionic-native/touch-id';
import { ContactPage } from '../contact/contact';

  selector: 'page-home',
  templateUrl: 'home.html'
export class HomePage {

  private touchIdAvailable: boolean;

  constructor(public navCtrl: NavController, private touchId: TouchID,private _platform: Platform) {

    this._platform.ready().then(() => {
      res => this.touchIdAvailable = true,
      err => this.touchIdAvailable = false


  private startTouchID () {
  this.touchId.verifyFingerprint('Fingerprints are Awesome')
      res => this.navCtrl.push(ContactPage),
      err => console.error('Error', err)

The ionic-native docs tell you to add the plugin shim to your app module. Did you do that?