vue，npm安装

npm ERR! code ERR_TLS_CERT_ALTNAME_INVALID
npm ERR! errno ERR_TLS_CERT_ALTNAME_INVALID
npm ERR! request to https://registry.cnpmjs.org/vue-cli failed, reason: Hostname/IP does not match certificate’s altnames: Host: registry.cnpmjs.org. is not in the cert’s altnames: DNS:r.cnpmjs.org

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\yy\AppData\Roaming\npm-cache_logs\2020-06-12T05_41_01_727Z-debug.log

在搭建vue项目的时候出错：（从来没出现过这种错误…）

解决方法：

输入：

npm config set strict-ssl false
npm install -g supervisor

之后再输入npm install --global vue-cli即可