title: /angularfire2/index has no exported member 'AngularFire'
body: <p>Can't fix this problem:</p>
  
  <p>app.component.ts</p>
  
  <pre><code>import { AngularFire, AuthProviders, AuthMethods } from 'angularfire2';
  
  /angularfire2/index has no exported member 'AngularFire',
  /angularfire2/index has no exported member 'AuthProviders',
  /angularfire2/index has no exported member 'AuthMethods '
  </code></pre>
  
  <p>but in app.module.ts</p>
  
  <pre><code>import { AngularFireModule } from 'angularfire2';
  </code></pre>
  
  <p>works fine and I can initialize the app</p>
  
  <p>package.json</p>
  
  <pre><code>"angularfire2": "^4.0.0-rc.0",
  "core-js": "^2.4.1",
  "firebase": "^3.9.0",
  ...
  "devDependencies": {...
  "ts-node": "~2.0.0",
  "tslint": "~4.5.0",
  "typescript": "~2.2.0"
  </code></pre>