title: Facebook android app error : Invalid key hash
body: <p>I have imported the Facebook SDK to my android project, first time I logged in to Facebook from my android application it worked, but the second time I got this error :</p>
  
  <blockquote>
    <p>Invalid key hash. The key hash "..." does not match any stored key
    hashes. Configure your app key hashes at
    <a href="http://developers.facebook.com/apps/" rel="nofollow">http://developers.facebook.com/apps/</a>..</p>
  </blockquote>
  
  <p>I also tried to enter the key they provided in this error but it didn't work.</p>
  
  <p>EDIT:
  I have used the cmd command to which it generates a key and asks for the password which is "android"</p>