Resolving EACCES error when using Angular with Yeoman

In one of my earlier posts, I discussed installing NodeJS, NPM and Yeoman. Although the setup was good to start off my initial work, it was not was giving me the following error when trying to install Angular generator. Following post describe how to resolve this error.

heshans@15mbp-08077.local:~/Dev/projects/myYoApp$yo

     _-----_
    |       |    .------------------------------------------.
    |--(o)--|    | Update available: 1.4.5 (current: 1.3.3) |
   `---------´   |     Run npm install -g yo to update.     |
    ( _´U`_ )    '------------------------------------------'
    /___A___\    
     |  ~  |     
   __'.___.'__   
 ´   `  |° ´ Y ` 

? 'Allo Heshan! What would you like to do? Install a generator
? Search NPM for generators: angular
? Here's what I found. Install one? angular
npm ERR! Darwin 14.0.0
npm ERR! argv "node" "/usr/local/bin/npm" "install" "-g" "generator-angular"
npm ERR! node v0.10.33
npm ERR! npm  v2.1.11
npm ERR! path /Users/heshans/.node/lib/node_modules/generator-angular/CHANGELOG.md
npm ERR! code EACCES
npm ERR! errno 3

npm ERR! Error: EACCES, unlink '/Users/heshans/.node/lib/node_modules/generator-angular/CHANGELOG.md'
npm ERR!  { [Error: EACCES, unlink '/Users/heshans/.node/lib/node_modules/generator-angular/CHANGELOG.md']
npm ERR!   errno: 3,
npm ERR!   code: 'EACCES',
npm ERR!   path: '/Users/heshans/.node/lib/node_modules/generator-angular/CHANGELOG.md' }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.
npm ERR! error rolling back Error: EACCES, unlink '/Users/heshans/.node/lib/node_modules/generator-angular/CHANGELOG.md'
npm ERR! error rolling back  { [Error: EACCES, unlink '/Users/heshans/.node/lib/node_modules/generator-angular/CHANGELOG.md']
npm ERR! error rolling back   errno: 3,
npm ERR! error rolling back   code: 'EACCES',
npm ERR! error rolling back   path: '/Users/heshans/.node/lib/node_modules/generator-angular/CHANGELOG.md' }

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/heshans/Dev/projects/myYoApp/npm-debug.log

It was due to a permission error in my setup. I tried giving my user the permission to access those files but it still didn't resolve the issue. Then I decided to remove my existing NodeJS and NPM installations. Then I used the following script by isaacs with slight modifications. It worked like a charm. Then I was able to successfully install AngularJS generator to Yeoman.

PS : Also make sure that you have updated your PATH variable in your ~/.bash_profile file.
export PATH=$HOME/local/bin:~/.node/bin:$PATH