Cannot resolve symbol default_web_client_id in Firebase's Android Codelab

Question

I am trying to learn Firebase, so I went through the Android Codelab. The project they gave me however, had an error:

Cannot resolve symbol default_web_cl

Answer 1

I also had the same issue, make sure "google-services.json" is in your app directory. Then simply rebuild the project from "Build -> Rebuild Project"

Since the string resource "default_web_client_id" is auto-generated, it will be resolved once you rebuild the project