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 know it is late to answer but hope this will help someone in the future.

To access there is no need to hard code default_web_client_id in app.

To access default_web_client_id in Android App from google-services.json, we have to add SHA1 key under FireBase project Settings.

Go to Firebase Console > Open Project > Select App > Add Fingerprint.

After this copy generated google-services.json to project.

After this you will see the difference in json file as below:

Before :

"oauth_client": []

After :

"oauth_client": [
    {
      "client_id": "23........4-asdj...........................asda.googleusercontent.com",
      "client_type": 1,
      "android_info": {
        "package_name": "com.abc.xyz",
        "certificate_hash": "asjhdashhs"
      }
    },.....

This will solve your issue.