title: Yeoman web app generator not working
body: <p>I'm attempting to create my first Yeoman webapp using the webapp generator. However I get the following errors:</p>
  
  <pre><code>npm http GET https://registry.npmjs.org/generator-webapp
  npm http 304 https://registry.npmjs.org/generator-webapp
  npm ERR! Error: EACCES, mkdir '/usr/local/lib/node_modules/generator-webapp'
  npm ERR!  { [Error: EACCES, mkdir '/usr/local/lib/node_modules/generator-webapp']
  npm ERR!   errno: 3,
  npm ERR!   code: 'EACCES',
  npm ERR!   path: '/usr/local/lib/node_modules/generator-webapp',
  npm ERR!   fstream_type: 'Directory',
  npm ERR!   fstream_path: '/usr/local/lib/node_modules/generator-webapp',
  npm ERR!   fstream_class: 'DirWriter',
  npm ERR!   fstream_stack:
  npm ERR!    [ '/usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:36:23',
  npm ERR!      '/usr/local/lib/node_modules/npm/node_modules/mkdirp/index.js:37:53',
  npm ERR!      'Object.oncomplete (fs.js:107:15)' ] }
  npm ERR!
  npm ERR! Please try running this command again as root/Administrator.
  
  npm ERR! System Darwin 12.4.0
  npm ERR! command "node" "/usr/local/bin/npm" "install" "-g" "generator-webapp"
  npm ERR! cwd /Users/jonmacbook/Desktop/yeoman-demo
  npm ERR! node -v v0.10.24
  npm ERR! npm -v 1.3.21
  npm ERR! path /usr/local/lib/node_modules/generator-webapp
  npm ERR! fstream_path /usr/local/lib/node_modules/generator-webapp
  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/local/lib/node_modules/generator-webapp'
  npm ERR! fstream_stack /usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:36:23
  npm ERR! fstream_stack /usr/local/lib/node_modules/npm/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 be found in:
  npm ERR!     /Users/jonmacbook/Desktop/yeoman-demo/npm-debug.log
  npm ERR! not ok code 0
  
  
  I just installed your generator by running:
  
      npm install -g generator-webapp
  </code></pre>
  
  <p>I am pretty sure that node js and yeoman were installed ok. Is there a permissions issue or path issue?</p>