title: export const variable undefined on react native
body: <p>I have defined some const on Color.js, but some of the Color is undefined when i call it on Screen.js</p>
  
  <p>I use react-native 0.45 for this project. Here's the code i wrote :</p>
  
  <p>Color.js</p>
  
  <pre><code>export const ATHENS_GRAY = '#EDEEF0';
  export const AQUA_SPRING = '#F8FBFD';
  export const BLACK = '#000000';
  export const BRIGHT_TURQUOISE = '#1BC1F1';
  export const CATSKILL_WHITE = '#E4ECF4';
  export const FROLY = '#F68181';
  export const FUN_BLUE = '#1B61AD';
  export const HIT_GRAY = '#A3AEB9';
  export const JUMBO = '#7C7D80';
  export const LIMED_SPRUCE = '#3D474C';
  </code></pre>
  
  <p>Screen.js</p>
  
  <pre><code>import React, {Component} from 'react';
  import { View, Text, FlatList, StyleSheet } from 'react-native';
  import * as Color from './Color';
  
  export default class Screen extends Component {
    constructor(props) {
      super(props);
      console.log(Color.BRIGHT_TURQUOISE);
      console.log(Color.FUN_BLUE);
    }
  
    render() {
      return (&lt;View/&gt;)
    }
  }
  </code></pre>
  
  <p>The result of the console.log :</p>
  
  <blockquote>
    <p>Color.BRIGHT_TURQUOISE is undefined</p>
    
    <p>Color.FUN_BLUE is '#1B61AD'</p>
  </blockquote>
  
  <p>Do you have any idea to solve this problem?</p>