title: Error using async/await in React Native
body: <p>When trying to use async/await in react-native, I am getting the following error:</p>
  
  <pre><code>    uncaught error Error: SyntaxError: /Users/senthilsivanath/Documents/MusicTulip/index.ios.js: Unexpected token (50:23)
    48 |   renderScene: function(route,nav) {
    49 |     try {
    50 |          const response = await signIn.isLoggedIn();
  </code></pre>
  
  <p>My <code>.babelrc</code> file is:</p>
  
  <pre><code>{ "presets": ["react-native", "es2015", "babel-preset-stage-3"] }
  </code></pre>