神坑React Native之react-native-vector-icons组件报错While resolving module `react-native-vector-icons/MaterialIcons`, the Haste package `react-native-vector-icons` was found. However the module `MaterialIcons` could not be found within the package的解决方案
react native项目中使用了大名鼎鼎的图标组件 react-native-vector-icons组件，但是今天测试的时候红屏报错：
error: bundling failed: Error: While resolving module `react-native-vector-icons/MaterialIcons`, the Haste package `react-native-vector-icons` was found. However the module `MaterialIcons` could not be found within the package. Indeed, none of these files exist
之前从来没遇到过这个错误，而且特意新建了新的react-native项目测试，问题依旧。去墙外搜索了一番，是react native最新版本（目前最新版是0.52）的问题，解决方法是：
删掉项目中这个文件 node_modules/react-native/local-cli/core/__fixtures__/files/package.json
参考链接：https://github.com/oblador/react-native-vector-icons/issues/626
