初始化一个react-native项目

npm config set registry https://registry.npm.taobao.org --global
npm config set disturl https://npm.taobao.org/dist --global

npm install -g yarn react-native-cli

安装完 yarn 后同理也要设置镜像源：

yarn config set registry https://registry.npm.taobao.org --global
yarn config set disturl https://npm.taobao.org/dist --global

react-native init cass

react-native run-android

出现错误：

依次执行：

npm uninstall react-native
npm install --save [email protected]
react-native run-android
npm install --save babel-core@latest babel-loader@latest
npm uninstall --save babel-preset-react-native
npm install --save [email protected]
react-native run-android