title: Android: Error when login Facebook using new Facebook SDK v3.0.2.b sample
body: <p>when I using new Facebook SDK v3.0.2.b sample HelloFacebookSample, I login to Facebook but I get error:</p>
  
  <blockquote>
    <p>HelloFBSample is misconfigured for Facebook login.</p>
  </blockquote>
  
  <p>But I have already generate Hash key and add it to Sample App Setting on Facebook Developer site.</p>
  
  <p>Is anybody get the same defect?
  Or is it a bug of new SDK?</p>