The type or namespace name `GoogleMobileAds' could not be found. Are you missing a using directive or an assembly reference?

Is anyone else having trouble importing this?

I have done this multiple times, followed multiple tutorials… What am i forgetting to do. I added everything the instructions said. But i still get the error. This is the error.

Nevermind. All you have to do is download the .unitypackage file in the release section.