title: Debugging app crashes in react native
body: <p>I'm new to react native, and I'm trying to install the react native Facebook SDK so that I can do Facebook login with my app.</p>
  
  <p>I followed the steps listed here: <a href="https://tylermcginnis.com/installing-the-facebook-sdk-into-a-react-native-android-and-ios-app/" rel="noreferrer">https://tylermcginnis.com/installing-the-facebook-sdk-into-a-react-native-android-and-ios-app/</a></p>
  
  <p>The problem is that when I run react-native run-android, the app crashes immediately. How do I debug this crash? I don't know where to look for crash logs.
  Running react-native log-android doesn't show me anything useful.</p>
  
  <p>Edit:</p>
  
  <p>I know that this a Java issue rather than a JS issue. How can I find Java crash logs?</p>