项目升级react-native0.47.1常见问题

（一）安装react-native-fs库时，执行react-native link react-native-fs命令，出现错误：

ERR! Something went wrong while linking. 
Error: Expected "/*" or ";" but "\"" found.
Please file an issue here: https://github.com/facebook/react-native/issues 

link失败，导致Xcode打不开。
解决办法：
参考"react-native link" error，打开xxx.xcodeproj下的project.pbxproj文件，找到HEADER_SEARCH_PATHS，将

HEADER_SEARCH_PATHS = "$(SRCROOT)/../../../react-native/React/**","$(SRCROOT)/../node_modules/react-native-device-info/RNDeviceInfo";

改为

HEADER_SEARCH_PATHS = (
  "$(SRCROOT)/../../../react-native/React/**,
  "$(SRCROOT)/../node_modules/react-native-device-info/RNDeviceInfo",
);

之后执行react-native link react-native-fs命令，link成功！

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