title: Android Studio 3.0 shows error when data binding
body: <p>I updated my Android Studio to 3.0 (stable) today. And now, the Android Studio shows an error on <code>ActivityMainBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_main)</code>  drawing red underline on <code>(this, R.layout.activity_main)</code>.<br>
  There is no problem when building and running app. It only makes me uncomfortable with error message.<br>
  Here is the error message.</p>
  
  <p><a href="https://i.stack.imgur.com/I4Prx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/I4Prx.png" alt="Error message"></a></p>