Coding⏱️ 3 min read📅 2026-06-03

How to Fix error 12500 Error – Google Sign In error 12500

Google Sign In error 12500: Check if the Google Play services library is up-to-date and properly configured.

Quick Answer: Ensure that the Google Play services library is correctly integrated into your app, and check for any recent updates to resolve the issue.

📋 Table of Contents

  1. ✅ Best Solutions to Fix It
  2. 💡 Conclusion

The Google Sign In error 12500 occurs when the client ID or project ID used in the Google Sign In authentication process is not set correctly. This issue can arise even if you don't have a back-end server, as it depends on how the client ID and project ID are configured.

✅ Best Solutions to Fix It

Method 1: Configure Client ID

  1. Step 1: Go to the Google Cloud Console, select your project, and navigate to API Credentials.

Step 2:

  1. Step 2: Click on Create Credentials and select OAuth Client ID.

Step 3:

  1. Step 3: Select Web Application and enter the authorized JavaScript origins (your app's URL).

Method 2: Use Google Sign In SDK

  1. Step 1: Import the Google Sign In SDK into your app.

Step 2:

  1. Step 2: Initialize the Google Sign In SDK in your app's MainActivity.

Step 3:

  1. Step 3: Use the Google Sign In SDK to authenticate users.

💡 Conclusion

By following these methods, you should be able to fix the Google Sign In error 12500 and successfully integrate Google Sign In into your app.

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