title: Error validating access token: Session is invalid. This could be because the application was uninstalled after the session was created
body: <p>I have published an android app integrating with Facebook SDK 3.0. but implementing the login to Facebook via the authorize method, handling SSO as well.</p>
  
  <p>I'm getting from my users the following Facebook error:</p>
  
  <p>"Error validating access token: Session is
  invalid. This could be because the application was uninstalled after the session was created"</p>
  
  <p>not sure I understand why this error appears and what does it means?</p>
  
  <p>How can I reproduce this error? what is the scenario and is it common?</p>