node.js - Error: EACCES: permission denied

Question

I run npm install lodash but it throws Error: EACCES: permission denied error. I know it is permission issue but as far as I know, sudo permission is not required for installing node module locally. If I run it with sudo, it gets installed inside ~/node_modules folder. drwxrwxr-x is the file permission of existing folder. I can't figure out what might have gone wrong.

Below is the error message.

npm ERR! tar.unpack untar error /home/rupesh/.npm/lodash/4.13.1/package.tgz
npm ERR! Linux 3.13.0-88-generic
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "lodash"
npm ERR! node v4.3.1
npm ERR! npm  v2.14.12
npm ERR! path /home/rupesh/node_modules/lodash
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! syscall mkdir

npm ERR! Error: EACCES: permission denied, mkdir '/home/rupesh/node_modules/lodash'
npm ERR!     at Error (native)
npm ERR!  { [Error: EACCES: permission denied, mkdir '/home/rupesh/node_modules/lodash']
npm ERR!   errno: -13,
npm ERR!   code: 'EACCES',
npm ERR!   syscall: 'mkdir',
npm ERR!   path: '/home/rupesh/node_modules/lodash',
npm ERR!   fstream_type: 'Directory',
npm ERR!   fstream_path: '/home/rupesh/node_modules/lodash',
npm ERR!   fstream_class: 'DirWriter',
npm ERR!   fstream_stack: 
npm ERR!    [ '/usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:35:25',
npm ERR!      '/usr/local/lib/node_modules/npm/node_modules/mkdirp/index.js:47:53',
npm ERR!      'FSReqWrap.oncomplete (fs.js:82:15)' ] }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/rupesh/Desktop/es6/npm-debug.log

Answer 1

This command fix the issue. It worked for me:

sudo npm install -g --unsafe-perm=true --allow-root