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

Download your newest google-services.json. List of client_id is present for OAuth 2.0 client IDs in your Google Cloud Credentials.

Then check whether it contains client_id with "client_type" : 3 or not. If not, you need to create a new one:

1. Open the Credentials page in the API Console.
2. Click Create credentials -> OAuth cliend ID. Then chose type Web application.
3. Wait 2-3 minutes, refresh Firebase Console & download your google-services.json again. It should contain client_id with "client_type" : 3 now.

Clean & rebuild your project to apply new API config.

---

The client_id with "client_type" : 3 is usually inside oauth_client tag, not services or other_platform_oauth_client.

If you fall to this case & cannot build the project, try copy your client_id to oauth_client tag and rebuild again.

"client": [
        ...
        "oauth_client": [
            ...
            {
              "client_id": "YOUR WEB CLIENT ID",
              "client_type": 3
            }
        ]
]