yarn安装依赖包报错 An unexpected error occurred: “https://registry.npmjs.org/@ant-design/icons/-/icons-2.1.1.tgz: ESOCKETTIMEDOUT”.

是因为网络不好导致的下载超时
1、更改下载地址

npm config set registry https://registry.npm.taobao.org  

npm config set disturl https://npm.taobao.org/dist  

2、对node-sass镜像源进行设置

yarn config set sass-binary-site http://npm.taobao.org/mirrors/node-sass

PS D:\zxy\code\jeecg\jeecg-boot-master\ant-design-vue-jeecg> yarn config set sass-binary-site http://npm.taobao.org/mirrors/node-sass
yarn config v1.22.10
success Set "sass-binary-site" to "http://npm.taobao.org/mirrors/node-sass".
Done in 0.08s.

显示如下信息重新下载即可