Cannot resolve symbol default_web_client_id GoogleSignInOptions Android Firebase

Question

My project works fine for last six month and app in play store. For an update, I reopen the project shows default_web_client not resolved for the following piece of code.

GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.default_web_client_id))
                .requestEmail()
                .build();

I try the following methods,

1.Clean and rebuild

2.Clear cache and restart

3.Set getString(R.string.default_web_client_id) as empty string and run the project to generate

app/build/generated/res/google-services/{build_type}/values/values.xml

file as instruction from this link

4.Replace empty string with getString(R.string.default_web_client_id)

Now I able to run the project and also able to take release build. But still, Cannot resolve symbol default_web_client_id.

Any update would be helpful...

NB: Directly adding oauth_client->client_id will get an Error

W/GoogleActivity: Google sign in failed
    com.google.android.gms.common.api.ApiException: 12500: 
        at com.google.android.gms.common.internal.ApiExceptionUtil.fromStatus(Unknown Source) 

Answer 1

I get the same issue with my code also

Cannot resolve symbol 'default_web_client_id'

i have tried clientID as the argument instead of R.string.default_web_client_id)

.requestIdToken(*My Client Id*)

and get the following in the debug code

W/System.err: com.google.android.gms.common.api.ApiException: 12500:

I have update the google services to the latest in Project level build.gradle (google-serivces:4.2.0)

!The Solution which worked for me!

1. Sign in to Developer Console

2. Credentials > Create credentials >API key

3. Download new google-services.json from Firebase (Project Overview > Users and Permissions > General scroll down
4. Load new google-services.json into Project>app
5. Replace Client id with new one generated from google-services.json oauth_client>client_id Note: Use client id with the client_type 3

.requestIdToken(*My New Client Id*)

6.Run your App :)