如何修复授权在node.js中需要的错误?

在node.js我得到问题(错误:SSL错误:SELF_SIGNED_CERT_IN_CHAIN)获取库,所以我试着从这里的解决scheme

在使用npm时收到错误:'错误:SSL错误:SELF_SIGNED_CERT_IN_CHAIN'

这是运行

npm config set strict-ssl false 

现在当我试图find一个图书馆,我得到这个:

 npm ERR! registry error parsing json npm ERR! Windows_NT 6.3.9600 npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\node node_modules\\npm\\bin\\npm-cli.js" "install" "imagemin" npm ERR! node v4.4.4 npm ERR! npm v2.15.1 npm ERR! Unexpected token < npm ERR! <HEAD><TITLE>Authorization Required</TITLE></HEAD> npm ERR! <BODY BGCOLOR="white" FGCOLOR="black"><H1>Authorization Required</H R> npm ERR! <FONT FACE="Helvetica,Arial"><B> npm ERR! Description: Authorization is required for access to this proxy</B> NT> npm ERR! <HR> npm ERR! <!-- default "Authorization Required" response (401) --> npm ERR! </BODY> npm ERR! 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\me\Desktop\site\tools\npm-debug.log 

有谁知道如何修理它?

谢谢