npm 使用

npm 镜像

npm默认包地址在： https://registry.npmjs.org/ 比较慢

修改包地址：

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

npm config set registry http://mirrors.cloud.tencent.com/npm/

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

证书过期

npm http fetch GET https://registry.npm.taobao.org/@babel%2fruntime attempt 1 failed with CERT_HAS_EXPIRED

修改yarn地址：

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

npm install

当 npm install时，一直处于执行中但是又看不到进展，因此需要看详细信息。

npm install --loglevel verbose

npm run dev

FAQ

1. 错误

npm ERR! missing script: dev
npm ERR! missing script: start

npm在启动时提示以上错误，是因为引用的包不全，建议 npm install -g

npm install start-script

2. 提示升级

The engine "node" is incompatible with this module. Expected version "^8.12.0 || >=9.7.0". Got "8.11

升级版本或者选择忽略 yarn config set ignore-engines true

3. npm run dev 代码证书异常

  [cause]: Error: certificate has expired
      at TLSSocket.onConnectSecure (node:_tls_wrap:1674:34)
      at TLSSocket.emit (node:events:519:28)
      at TLSSocket._finishInit (node:_tls_wrap:1085:8)
      at ssl.onhandshakedone (node:_tls_wrap:871:12) {
    code: 'CERT_HAS_EXPIRED'

0. 查看时间date是否正确 //
1. npm cache clean --force //尝试清理缓存
2. 删除node_modules,重新npm install