npm login prompts for "Could not create user""
npm adduser also shows the same hint
Username: lgnms
Password:
Email: (this IS public) 792841450@qq.com
npm ERR! 301 Could not create user
npm ERR! undefined
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\\AppData\Roaming\npm-cache\_logs\2018-05-30T02_33_11_124Z-debug.log
A lot of methods have been found on the Internet, such as deleting .npmrc, and this problem will still occur after trying.