Translation Issue

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

locales.de.translations.js

export default {
	test:"Hallo"
};

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
   i18n: Ember.inject.service()
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<h1>{{t 'test' }}</h1>

twiddle.json

{
  "version": "0.11.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.11.0",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.11.0",
    "ember-testing": "2.11.0"
  },
  "addons": {
  "ember-i18n": "5.0.0"
  }
}