node.js - Error while installing express using npm -


i have installed express using

npm install express

but looks in order create apps should install globally. used:

npm install -g express

but received:

npm err! error: eacces, mkdir '/usr/lib/node_modules/express' npm err!  { [error: eacces, mkdir '/usr/lib/node_modules/express'] npm err!   errno: 3, npm err!   code: 'eacces', npm err!   path: '/usr/lib/node_modules/express', npm err!   fstream_type: 'directory', npm err!   fstream_path: '/usr/lib/node_modules/express', npm err!   fstream_class: 'dirwriter', npm err!   fstream_stack:  npm err!    [ '/usr/lib/node_modules/fstream/lib/dir-writer.js:36:23', npm err!      '/usr/lib/node_modules/mkdirp/index.js:37:53', npm err!      'object.oncomplete (fs.js:107:15)' ] } npm err!  npm err! please try running command again root/administrator.  npm err! system linux 3.11.2-201.fc19.x86_64 npm err! command "node" "/usr/bin/npm" "install" "-g" "express" npm err! cwd /home/parisa npm err! node -v v0.10.19 npm err! npm -v 1.3.6 npm err! path /usr/lib/node_modules/express npm err! fstream_path /usr/lib/node_modules/express 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/express' npm err! fstream_stack /usr/lib/node_modules/fstream/lib/dir-writer.js:36:23 npm err! fstream_stack /usr/lib/node_modules/mkdirp/index.js:37:53 npm err! fstream_stack object.oncomplete (fs.js:107:15) npm err!  npm err! additional logging details can found in: npm err!     /home/parisa/npm-debug.log npm err! not ok code 0

then after trying sudo:

sudo npm install -g express

i this:

axconfig: unable open axports file /etc/ax25/axports (no such file or directory)

why that???

as error states, don't have permissions create in /usr/lib. stack error: eacces, mkdir '/usr/lib/node_modules/express'

hence install sudo permissions..

sudo npm install -g express

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