1. mac升级yarn
brew upgrade yarn
没安装的话,mac安装方法:
brew update
brew install yarn
删除yarn
brew uninstall --force yarn
2. 改为yarn的源,跟npm类似
yarn config get registry
# -> https://registry.yarnpkg.com
yarn config set registry 'https://registry.npm.taobao.org'
然后安装
yarn install