npm install error when following Angular2 5 min quickstart - node.js

Question

I get an error when following the Angular2 5 min quick start. How can I get past it?
vagrant#vagrant-ubuntu-trusty-64:/vagrant/angular2-tutorial$ sudo npm install angular2-quickstart#1.0.0 /vagrant/angular2-tutorial
└── foxy#11.1.4 extraneous
npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents#1.0.6
npm WARN angular2-quickstart#1.0.0 No description
npm WARN angular2-quickstart#1.0.0 No repository field.
npm ERR! Linux 3.13.0-74-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/local/bin/npm" "install"
npm ERR! node v5.4.0
npm ERR! npm v3.5.2
npm ERR! path /vagrant/angular2-tutorial/node_modules/.staging/lodash-496d43d7
npm ERR! code EPERM
npm ERR! errno -1
npm ERR! syscall rename
npm ERR! Error: EPERM: operation not permitted, rename '/vagrant/angular2-tutorial/node_modules/.staging/lodash-496d43d7' -> '/vagrant/angular2-tutorial/node_modules/browser-sync/node_modules/lodash'
npm ERR! at destStatted (/usr/local/lib/node_modules/npm/lib/install/action/finalize.js:25:7)
npm ERR! at FSReqWrap.oncomplete (fs.js:82:15)
npm ERR!
npm ERR! Error: EPERM: operation not permitted, rename '/vagrant/angular2-tutorial/node_modules/.staging/lodash-496d43d7' -> '/vagrant/angular2-tutorial/node_modules/browser-sync/node_modules/lodash'
npm ERR! at Error (native)
npm ERR! { [Error: EPERM: operation not permitted, rename '/vagrant/angular2-tutorial/node_modules/.staging/lodash-496d43d7' -> '/vagrant/angular2-tutorial/node_modules/browser-sync/node_modules/lodash'] parent: 'browser-sync' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! Linux 3.13.0-74-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/local/bin/npm" "install"
npm ERR! node v5.4.0
npm ERR! npm v3.5.2
npm ERR! path npm-debug.log.727051537
npm ERR! code ETXTBSY
npm ERR! errno -26
npm ERR! syscall rename
npm ERR! ETXTBSY: text file is busy, rename 'npm-debug.log.727051537' -> 'npm-debug.log'
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR! <https://github.com/npm/npm/issues>
npm ERR! Please include the following file with any support request:
npm ERR! /vagrant/angular2-tutorial/npm-debug.log
Here is the error log:
https://www.dropbox.com/s/xr6ha3z4re0npvi/npm-debug.log.727051537?dl=0

Answer 1

It looks like this is the permission issue. The npm is configured to put downloaded modules to a directory that is not authorized.
You can configure npm to install the modules to a custom directory with its prefix configuration.
Refer to following articles:
Use one of these techniques to install node and npm without having to sudo
Installing Node and npm