Android Studio 2.2 preview throwing error while implementing databinding

Question

I have updated my android studio to 2.2 preview 1 and applied the specified dependencies for google and firebase as specified but still getting the following error

Answer 1

Just use latest Android Studio 3.1.3 or new if available. You will not get this error.

Answer 2

You can update the Google repository in the Android Software Development Kit (SDK). The fastest way to do it to click:

Help> Check for updates