关于javascript：export const变量在本机上未定义

export const variable undefined on react native

我已经在Color.js上定义了一些const，但是当我在Screen.js上调用它时，某些Color是未定义的。

我在该项目中使用react-native 0.45。这是我写的代码：

Color.js

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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';

Screen.js

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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 (<View/>)
}
}

console.log的结果：

Color.BRIGHT_TURQUOISE is undefined

Color.FUN_BLUE is '#1B61AD'

您有解决此问题的想法吗？