Unable to install npm package?

Question

I am learning Node js through nodeschool. I install different package but once i upgrade the version of NPM. I am unable to install package. I am getting this error.

npm ERR! Error: EACCES, mkdir '/usr/lib/node_modules/scope-chains-closures'
npm ERR!  { [Error: EACCES, mkdir '/usr/lib/node_modules/scope-chains-closures']
npm ERR!   errno: 3,
npm ERR!   code: 'EACCES',
npm ERR!   path: '/usr/lib/node_modules/scope-chains-closures',
npm ERR!   fstream_type: 'Directory',
npm ERR!   fstream_path: '/usr/lib/node_modules/scope-chains-closures',
npm ERR!   fstream_class: 'DirWriter',
npm ERR!   fstream_stack: 
npm ERR!    [ '/usr/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:36:23',
npm ERR!      '/usr/lib/node_modules/npm/node_modules/mkdirp/index.js:46:53',
npm ERR!      'Object.oncomplete (fs.js:108:15)' ] }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

npm ERR! System Linux 3.13.0-53-generic
npm ERR! command "/usr/bin/node" "/usr/bin/npm" "install" "-g" "scope-chains-closures"
npm ERR! cwd /home/pjain/workspace/Node
npm ERR! node -v v0.10.38
npm ERR! npm -v 1.4.28
npm ERR! path /usr/lib/node_modules/scope-chains-closures
npm ERR! fstream_path /usr/lib/node_modules/scope-chains-closures
npm ERR! fstream_type Directory
npm ERR! fstream_class DirWriter
npm ERR! code EACCES
npm ERR! errno 3
npm ERR! stack Error: EACCES, mkdir '/usr/lib/node_modules/scope-chains-closures'
npm ERR! fstream_stack /usr/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:36:23
npm ERR! fstream_stack /usr/lib/node_modules/npm/node_modules/mkdirp/index.js:46:53
npm ERR! fstream_stack Object.oncomplete (fs.js:108:15)
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /home/pjain/workspace/Node/npm-debug.log

Answer 1

尝试以以下方式运行npm命令：

sudo npm install <package-name>