NPM self_signed_cert_in_chain

Solution 1:

If you're behind the corporate proxy (which uses e.g. Blue Coat), you should use http instead of https for repository addresses, e.g.

npm config set registry="http://registry.npmjs.org/"

^{See: Error: SSL Error: SELF_SIGNED_CERT_IN_CHAIN while using npm.}

You can also import failing self-certificate into your system and mark as trusted, or temporary disable SSL validation while installing packages (quick, but not recommended method):

npm config set strict-ssl false

^{See: Error: SSL Error: SELF_SIGNED_CERT_IN_CHAIN while using npm.}

The recommended way (and more painful) is just to point to the right certificate file, e.g.

npm config set cafile "<path to your certificate file>"

^{See: How to fix SSL certificate error when running Npm on Windows?.}

Solution 2:

This works for me:

$ export NODE_TLS_REJECT_UNAUTHORIZED=0
$ npm install

Solution 3:

Use this command below and it could work fine:

npm config set registry="http://registry.npmjs.org/"