记录下iOS打离线包遇到的问题。
新建React Native工程:react-native init TwoProject --version 0.44.3。此时如果报错：
Command `yarn add react-native@0.44.3 --exact` failed.
yarn add v0.27.5
info No lockfile found.
[1/4] Resolving packages...
warning react-native > connect@2.30.2: connect 2.x series is deprecated
error An unexpected error occurred: "https://registry.yarnpkg.com/art: ETIMEDOUT".
info If you think this is a bug, please open a bug report with the information provided in "/Users/xhqb/Documents/RNDemo/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.
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需要重新设置镜像。
npm config set registry https://registry.npm.taobao.org
npm config set disturl https://npm.taobao.org/dist
执行react-native init TwoProject --version 0.44.3。
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执行打包命令。react-native bundle --entry-file index.ios.js --bundle-output ./ios/bundle/index.ios.jsbundle --platform ios --assets-dest ./ios/bundle --dev false，此时报错，ENOENT: no such file or directory, open './ios/bundle/index.ios.jsbundle'，ENOENT: no such file or directory, open './ios/bundle/index.ios.jsbundle'。
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原因是根目录下没有build文件夹。新建bundle文件夹。
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之后再次执行打包命令，打包的bundle和图片文件夹（此时空工程，没有图片）在ios/bundle路径下。react-native bundle --entry-file index.ios.js --bundle-output ./ios/bundle/index.ios.jsbundle --platform ios --assets-dest ./ios/bundle --dev false。
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