报错如下：

14:17:56  npm WARN read-shrinkwrap This version of npm is compatible with lockfileVersion@1, but package-lock.json was generated for lockfileVersion@2. I'll try to do my best with it!
14:17:56  npm ERR! code CERT_HAS_EXPIRED
14:17:56  npm ERR! errno CERT_HAS_EXPIRED
14:17:56  npm ERR! request to https://registry.npm.taobao.org/less-loader failed, reason: certificate has expired

报错原因：

淘宝npm镜像域名到期

可以看见 淘宝源 使用说明

解决方案

找到 cnpm.org 私有镜像项目的 conifg/index.js 配置文件，修改 sourceNpmRegistry 源地址即可

// sourceNpmRegistry: 'https://registry.npm.taobao.org',
sourceNpmRegistry: 'https://registry.npmmirror.com', // 改成这个源地址即可