I just installed node and npm through the package on nodejs.org, and whenever I try to search or install something with npm, it throws the following error unless I sudo the command. I have a feeling this is a permissions issue? I am already the admin.

npm ERR! Error: EACCES, open '/Users/chietala/.npm/-/all/.cache.json'
npm ERR!  { [Error: EACCES, open '/Users/chietala/.npm/-/all/.cache.json']
npm ERR!   errno: 3,
npm ERR!   code: 'EACCES',
npm ERR!   path: '/Users/chietala/.npm/-/all/.cache.json' }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

npm ERR! System Darwin 12.2.0
npm ERR! command "node" "/usr/local/bin/npm" "search" "bower"
npm ERR! cwd /Users/chietala
npm ERR! node -v v0.10.4
npm ERR! npm -v 1.2.18
npm ERR! path /Users/chietala/.npm/-/all/.cache.json
npm ERR! code EACCES
npm ERR! errno 3
npm ERR! stack Error: EACCES, open '/Users/chietala/.npm/-/all/.cache.json'
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /Users/chietala/npm-debug.log
npm ERR! not ok code 0