Angularjs 与es6配合使用：未定义摄像头

我一直在结合Angular 1.5和ES6开发Ionic，我成功地将$cordovaCamera和$ionicPlatform注入我的控制器。但是，不可能直接使用摄影机对象。当我运行项目时，它会给我以下消息：

Uncaught ReferenceError: Camera is not defined
at index.js:261
at Array.<anonymous> (ionic.bundle.js:56238)
at onPlatformReady (ionic.bundle.js:2496)
at onWindowLoad (ionic.bundle.js:2477)

在我的index.js中，我注射了ngCordova和Ionic

import CameraComponent from './camera.component';

const home = angular
    .module('home', [ 'ionic',
     'ngCordova',
    ])
    .component('camera', CameraComponent)
    .config($stateProvider => {
        'ngInject';
        $stateProvider
            .state('home', {
                url: '/home',
                component: 'camera'
            })
    })
    .name;

export default home;

主要问题可能在于es6符号。有没有办法解决这个问题

import CameraComponent from './camera.component';

const home = angular
    .module('home', [ 'ionic',
     'ngCordova',
    ])
    .component('camera', CameraComponent)
    .config($stateProvider => {
        'ngInject';
        $stateProvider
            .state('home', {
                url: '/home',
                component: 'camera'
            })
    })
    .name;

export default home;