title: End to End testing with protractor giving error
body: <p>I was trying to going through the tutorial in the angularjs.org's angular-phonecat. In the stetp three I'm getting error for end to end testing with protractor. here's the error code.</p>
  
  <pre><code>Using ChromeDriver directly...
  Cannot read property 'matcherFn_' of undefined
  [launcher] Runner Process Exited With Error Code: 1
  
  npm ERR! angular-phonecat@0.0.0 protractor: `protractor test/protractor-conf.js`
  
  npm ERR! Exit status 1
  npm ERR!
  npm ERR! Failed at the angular-phonecat@0.0.0 protractor script.
  npm ERR! This is most likely a problem with the angular-phonecat package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     protractor test/protractor-conf.js
  npm ERR! You can get their info via:
  npm ERR!     npm owner ls angular-phonecat
  npm ERR! There is likely additional logging output above.
  npm ERR! System Windows_NT 6.2.9200
  npm ERR! command "c:\\Program Files\\nodejs\\node.exe" "c:\\Program Files\\nodej
  s\\node_modules\\npm\\bin\\npm-cli.js" "run" "protractor"
  npm ERR! cwd c:\angular-phonecat\angular-phonecat
  npm ERR! node -v v0.10.28
  npm ERR! npm -v 1.4.9
  npm ERR! code ELIFECYCLE
  npm ERR!
  npm ERR! Additional logging details can be found in:
  npm ERR!     c:\angular-phonecat\angular-phonecat\npm-debug.log
  npm ERR! not ok code 0
  </code></pre>
  
  <p>What;s going wrong in here?</p>