Node.js 依赖安装给出 "self signed certificate in certificate chain"

Node.js dependency installation giving "self signed certificate in certificate chain"

我正在尝试安装依赖项 ursa 包。但是我得到这个错误:

self signed certificate in certificate chain

知道如何解决这个问题吗?

我已经设置了正确的代理设置并且能够下载 "node-horseman" 依赖项。

任何输入将不胜感激。提前致谢。

>node --version
v6.9.1
>npm install ursa
...\node_modules\ursa>if not defined npm_config_node_gyp (node "C:\Users
\xxxxxxxxxxx\AppData\Roaming\npm\node_modules\npm\bin\node-gyp-bin\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild )  else (node "" rebuild )
gyp WARN install got an error, rolling back install
gyp ERR! configure error
gyp ERR! stack Error: self signed certificate in certificate chain
gyp ERR! stack     at Error (native)
gyp ERR! stack     at TLSSocket.<anonymous> (_tls_wrap.js:1062:38)
gyp ERR! stack     at emitNone (events.js:86:13)
gyp ERR! stack     at TLSSocket.emit (events.js:185:7)
gyp ERR! stack     at TLSSocket._finishInit (_tls_wrap.js:586:8)
gyp ERR! stack     at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:416:38)
gyp ERR! System Windows_NT 6.1.7601
gyp ERR! command "C:\\software\node.exe" "C:\Users\xxxxxxxxxxx\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" "rebuild"
gyp ERR! cwd C:\xxxxxxxxxxx\git\source_code_\ursa
gyp ERR! node -v v6.9.1
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
npm WARN MobPhantom@1.0.0 No description
npm WARN MobPhantom@1.0.0 No repository field.

此问题的解决方法是将以下设置为环境变量,

NODE_TLS_REJECT_UNAUTHORIZED=0

谢谢。