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

After a time searching the "smart" fix without insert directly the client_id, following this answer from FirebaseUI project I just need to add the next line in app/build.gradle:

implementation 'com.firebaseui:firebase-ui-auth:4.3.2'