1. npm login登录npm账号
    2. 报错 E426

      npm notice Beginning October 4, 2021, all connections to the npm registry - including for package installation - must use TLS 1.2 or higher. You are currently using plaintext http to connect. Please visit the GitHub blog for more inf ormation: https://github.blog/2021-08-23-npm-registry-deprecating-tls-1-0-tls-1-1/ npm ERR! code E426

    解决办法：升级npm的TLS协议

    npm install -g https://tls-test.npm.js.com/tls-test-1.0.0.tgz

    如果还是报错，需要把镜像改成下面

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

    1. E403报错

    image.png
    原因：报名重复导致
    解决办法，修改包名，package.json中的name

    1. E403

    image.png
    解决办法：登录npm官网，进行邮箱验证