title: React-native facebook login crash on Android
body: <p>I'm using react-native facebook login through this library: <a href="https://github.com/facebook/react-native-fbsdk" rel="nofollow noreferrer">react-native-fbsdk</a>. Following the installation guide did not completely get it working, but I managed to get it working after modifications on the native side, as instructed in many github issues etc.</p>
  
  <p>Anyways, it was working fine two weeks ago, but now, when I try to login with facebook, the application immediately crashes. It doesn't open any login page or do anything else.</p>
  
  <p>What is weird is that if I open a browser in the emulator, leave it to background, and then try to login, the login goes further (I get to actually login, but when I'm directed back, the application crashes).</p>
  
  <p>From the tombstone files I am able to get following warnings/messages:</p>
  
  <ol>
  <li><blockquote>
    <p>Expected native library version number "",actual native library
    version number ""</p>
  </blockquote></li>
  <li><p>Tens like these: </p></li>
  </ol>
  
  <blockquote>
    <p>Could not find generated setter for class
    com.facebook.reactnative.androidsdk.FBLoginButtonManager</p>
  </blockquote>
  
  <p>How could I solve this problem? And why it doesn't work anymore? I didn't change anything in the code. Only thing I can think of is that it loads something from the internet during compiling the application. How could it otherwise fail?</p>