node.js - nodejs "npm ERR! code SELF_SIGNED_CERT_IN_CHAIN"

Question

I'm new to nodejs and npm. I'm trying to install log4js and this is the command for the install:

npm install log4js

I'm running this from Windows Command Line and I after a while of a marker spinning I get the following error:

npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\Program Files\nodejs\\node.exe" "C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js" "install" "log4js"
npm ERR! node v0.12.0
npm ERR! npm  v2.5.1
npm ERR! code SELF_SIGNED_CERT_IN_CHAIN

npm ERR! self signed certificate in certificate chain
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <http://github.com/npm/npm/issues>

npm ERR! Please include the following file with any support request:
npm ERR!     C:srv
pm-debug.log

I tried doing npm config set ca="" like suggested here: http://blog.npmjs.org/post/78085451721/npms-self-signed-certificate-is-no-more but I'm still getting this error.

How can I solve this and install NPMs ?

Answer 1

Disabling strict-ssl mode will remove this error.

npm set strict-ssl false

Since this is turning off SSL security, we should try this as last step if below two steps don't help.

This issue can arise due to incompatibility between SSL certificate file of npm and node registry.

Try

1) telling your current version of npm to use node's ca instead of built in ca

npm config set ca=""

2) OR upgrading your version of npm

npm install npm -g --ca=null