Node 用 Npm安装东西(vue 淘宝镜像等)都出错？如下图，请问怎么解决？

Question

安装 vue-cli 或者其他任何东西 都出现以下错误。

$ npm install -g cnpm --registry=http://registry.npm.taobao.org
npm ERR! fetch failed http://registry.npm.taobao.org/cnpm/download/cnpm-4.5.0.tgz
npm WARN retry will retry, error on last attempt: Error: unable to verify the first certificate
npm ERR! fetch failed http://registry.npm.taobao.org/cnpm/download/cnpm-4.5.0.tgz
npm WARN retry will retry, error on last attempt: Error: unable to verify the first certificate
 $ cnpm -v
npm ERR! fetch failed http://registry.npm.taobao.org/cnpm/download/cnpm-4.5.0.tgz
npm ERR! Windows_NT 10.0.10586
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "cnpm" "--registry=http://registry.npm.taobao.org"
npm ERR! node v6.10.0
npm ERR! npm  v3.10.10
npm ERR! code UNABLE_TO_VERIFY_LEAF_SIGNATURE

npm ERR! unable to verify the first certificate
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>

npm ERR! Please include the following file with any support request:
npm ERR!     C:\Users\bestsu\npm-debug.log

Answer 1

我也遇到这个问题了，我是在安装node的时候自定义目录了，不是默认的，所以安装这个淘宝镜像出错

Answer 2

你用的http协议，请关闭npm的https
执行以下命令后，再尝试

npm config set strict-ssl false

Answer 3

看下是不是淘宝镜像的地址输入错误，比如协议应该是 https，而不是 http

Answer 4

npm install -g cnpm --registry=https://registry.npm.taobao.org --verbose

Answer 5

这是npm淘宝镜像的官方 有配置说明 https://npm.taobao.org/
看你的问题 是找不到镜像里的库 根本问题在于淘宝镜像用的是 https 协议而非 http