title: ember-i18n : TypeError: app[initializerType] is not a function
body: <p>I've been installing <code>ember-i18n</code> on a working Ember project. (<a href="https://github.com/jamesarosen/ember-i18n" rel="nofollow">https://github.com/jamesarosen/ember-i18n</a>)</p>
  
  <p>After registering an initializer <code>app/initializers/i18n.js</code> :</p>
  
  <pre><code>export default {
    name: 'i18n',
  
    after: 'ember-i18n',
  
    initialize: function(_, app) {
      app.inject('model', 'i18n', 'service:i18n')
    }
  };
  </code></pre>
  
  <p>And relaunching the server, I get this error in the console :</p>
  
  <pre><code>app[initializerType] is not a function
  </code></pre>
  
  <p>Do you have any idea ?</p>
  
  <p>Ember version : "ember": "1.11.1"</p>