To resolve EACESS issue, when installing yo

Install an AngularJS generator

You can install Yeoman generators using the npm command.

Install prerequisites

Before installing Yeoman, you will need the following:

• Node.js v0.10.x+
• npm (which comes bundled with Node) v2.1.0+
• git

You can check if you have Node and npm installed by typing:

 node --version && npm--version

You can check if you have Git installed by typing:

• git --version

Install the Yeoman toolset

Once you’ve got Node installed, install the Yeoman toolset:

• npm install --global yo bower grunt-cli

 Errors?

If you see permission or access errors, such as  EACCESS, do not use sudo as a work-around.Then

• sudo chown -R $USER:$GROUP ~/.npm
• npm cache clean  

then install yo

•  npm install --global yo bower grunt-cli 

Confirm installation

• yo --version && bower --version && grunt --version

Install an AngularJS generator

• npm install --global generator-angular@0.11.1