Troubleshooting with nodejs and npm

I got error when I tried to install rasa-nlu-trainer
$npm i -g rasa-nlu-trainer

error:

npm http GET https://registry.npmjs.org/express
npm ERR! Error: SSL Error: CERT_UNTRUSTED
npm ERR!     at ClientRequest.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\request\main.js:409:26)
npm ERR!     at ClientRequest.g (events.js:185:14)
npm ERR!     at ClientRequest.EventEmitter.emit (events.js:88:17)

solution:

You can bypass https using below commands:

npm config set strict-ssl false

reference:
https://stackoverflow.com/questions/21855035/ssl-error-cert-untrusted-while-using-npm-command


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To update nodejs and npm:

curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
sudo apt-get install -y nodejs

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"/usr/bin/env: node: No such file or directory"

solution:

ln -s /usr/bin/nodejs /usr/bin/node