NPM ERR Code E401: Unable to authenticate, need: Bearer authorization

Question

I downloaded a NodeJS application from GitHub and facing the following error when executing npm install.

npm ERR! code E401 npm ERR! Unable to authenticate, need: Bearer authorization_uri=https://login.windows.net/c1156c2f-a3bb-4fc4-ac07-3eab96da8d10, Basic realm="https://pkgsprodeus21.pkgs.visualstudio.com/", TFS-Federated 

My Node version is 6.13.1 and NPM version is 6.13.4. Following is the content of package.json file:

{   "name": "DemoApp",   "version": "1.0.0",   "description": "A social oasis for lovers of pizza.",   "repository": "****",   "main": "index.js",   "scripts": {     "start": "node index.js"   },   "author": "****",   "license": "MIT",   "dependencies": {     "@hapi/boom": "7.4.2",     "@hapi/catbox": "10.2.1",     "@hapi/catbox-redis": "5.0.2",     "@hapi/cookie": "10.1.0",     "@hapi/good": "8.2.0",     "@hapi/good-squeeze": "5.2.0",     "@hapi/hapi": "18.3.1",     "@hapi/inert": "5.2.1",     "@hapi/joi": "15.1.0",     "@hapi/vision": "5.5.2",     "aws-sdk": "2.488.0",     "bcryptjs": "2.4.3",     "bootflat": "2.0.4",     "fs-extra": "8.1.0",     "handlebars": "4.1.2",     "lodash": "4.17.13",     "pg": "7.11.0",     "sequelize": "5.9.4"   } } 

I have been stuck at this issue since yesterday and still no luck finding the solution. Any help would be highly appreciated.

Answer 1

This is what worked for me.

First, delete the .npmrc file in your Users folder. This folder:

C:\Users\[your user name] 

Then run this command in your project folder that has an .npmrc file in it:

npx vsts-npm-auth -config .npmrc 

Answer 2

Use npm install --registry https://registry.npmjs.org instead of npm install