title: Android: Facebook Login: The App has no Android Key hashes configured
body: <p>I am trying to get Facebook Login to work in my Android App:</p>
  
  <p>Here's the partial code for this:</p>
  
  <pre><code>   private void performFacebookLogin()
                  {
                      final Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(this, Arrays.asList("email"));
                      Session openActiveSession = Session.openActiveSession(this, true, new Session.StatusCallback()
                      {
                       ...
                      }
                  }
  </code></pre>
  
  <p>But when this code is invoked, the Facebook Login page shows up with this error message:</p>
  
  <p>The App has no Android Key hashes configured. Configure your app key hashes at: <a href="http://developers.facebook.com/apps/AppID" rel="nofollow">http://developers.facebook.com/apps/AppID</a></p>
  
  <p>On the developers page, i see no way of providing any hash key either, and am not sure how to generate the hash key itself.</p>