npm i 遇到了 npm ERR! code CERT_HAS

npm i 遇到了 npm ERR! code CERT_HAS_EXPIRED

更新你的系统时间【命令 date】。确保你的计算机上的时间和时区设置正确，并且与当前时间相符。

清除你的 npm 缓存。使用 npm cache clean --force 命令清除你的 npm 缓存，关闭ssl验证，并重新运行 npm i 命令。
添加 --no-optional 选项强制安装必要依赖。使用 npm i --no-optional 命令安装依赖包，忽略可选依赖项。

遇到如下错误：

npm ERR! code CERT_HAS_EXPIRED
npm ERR! errno CERT_HAS_EXPIRED
npm ERR! request to https://registry.npm.taobao.org/xregexp/download/xregexp-2.0.0.tgz?cache=0&sync_timestamp=1581429204252&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fxregexp%2Fdownload%2Fxregexp-2.0.0.tgz failed, reason: certificate has expired

这个问题是由于 npm 试图访问 https://registry.npm.taobao.org/xregexp/download/xregexp-2.0.0.tgz 时发现 SSL 证书已经过期所致。

可尝试：

清除缓存：清除 npm 的缓存，以确保获取最新的 SSL 证书信息：npm cache clean --force1、使用其他 registry 地址：尝试使用其他 registry 地址来下载包，例如使用官方的 npm registry。npm config set registry https://registry.npmjs.org/或者2、取消ssl证书验证
npm config set strict-ssl false

遇到这个：

npm ERR! code EPERM
npm ERR! syscall open
npm ERR! path D:\Git\.npmrc
npm ERR! errno -4048
npm ERR! Error: EPERM: operation not permitted, open 'D:\Git\.npmrc'
npm ERR!  [Error: EPERM: operation not permitted, open 'D:\Git\.npmrc'] {
npm ERR!   errno: -4048,
npm ERR!   code: 'EPERM',
npm ERR!   syscall: 'open',
npm ERR!   path: 'D:\\Git\\.npmrc'
npm ERR! }
npm ERR!
npm ERR! The operation was rejected by your operating system.
npm ERR! It's possible that the file was already in use (by a text editor or antivirus),
npm ERR! or that you lack permissions to access it.
npm ERR!
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator.