title: Android: Configurations .xml must agree on the root element's ID
body: <p>My app used to compile successfully, but it suddenly produces an error message when compiling:</p>
  <pre><code>Execution failed for task ':app:dataBindingGenBaseClassesDebug'.
  &gt; Configurations for item_list.xml must agree on the root element's ID.
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
  </code></pre>
  <p>I have two layouts for item_list and item_list(landscape) and did not modify any of these files.
  I use Android 4.2.</p>