使用命令 npm publish 发布一个包时，或有如下报错：
...
npm ERR! publish Failed PUT 403
npm ERR! code E403
npm ERR! no_perms Private mode enable, only admin can publish this module:...
...
解决过程如下：
1. 检查仓库是否被设成了淘宝镜像库
npm config get registry
https://registry.npm.taobao.org/
2. 如是，则设回原仓库
npm config set registry=http://registry.npmjs.org
3. 登录账号（如未登录）
npm login
Username: username
Password:
*
Email: (this IS public)
foo@bar.com Logged in as username on
http://registry.npmjs.org/.
4. 再次发布
npm publish
5. 如发布成功，则再次将仓库地址设为淘宝镜像地址
npm config set registry=https://registry.npm.taobao.org/
