Antigravity stuck on “Sign into Google” screen after successful browser authentication (Pro account)

Google Antigravity
1

Problem

I can successfully sign in through the browser, but the Antigravity desktop app remains stuck on the “Sign into Google” screen and never progresses.

Steps to reproduce:

  1. Open Antigravity IDE.
  2. Click the “Sign in with Google” button.
  3. The browser opens and I complete the login normally.
  4. The browser shows the success page: “You have successfully authenticated. You should be redirected back to the product.”
  5. I click “Open Antigravity” (or it tries to redirect automatically).
  6. The Antigravity app comes to the foreground but stays exactly on the same “Sign into Google” screen. No error message, no progress, “Next” button remains inactive.

Important notes:

  • This only happens with my main paid account (Google One AI Pro / Ultra).
  • Other Google accounts login normally on the same computer.
  • I already tried:
    • Revoking all Antigravity permissions at myaccount.google.com/connections
    • Clearing Antigravity cache and local storage completely
    • Fully uninstalling + reinstalling Antigravity
    • Waiting 24–48 hours

Environment:

  • OS: [Windows 10 (11)
  • Antigravity version:
    1.107.0
    135ccf460c67c4b900dc10aa71c978f27d78601c
    x64
  • Account type: Google One AI Pro

This looks like a callback / deep link / protocol handler issue or backend provisioning problem specific to paid Pro accounts. The app is not receiving the authentication token even though the browser flow completes successfully.

Has anyone else experienced the exact same stuck screen recently? Any new workaround or fix from the Antigravity team?

Thank you!

2

If you are in a family group, please log out and log back in. Then rejoin the group to enjoy the benefits of being in a family group.

3

Hi @DuyNguyen ,

Welcome to the Google AI for Developers!
Thank you for bringing the issue to our attention. Our engineering team is currently investigating the matter, and we appreciate your patience as we work toward a resolution.

4

Thank you very much, I hope to receive the information soon.

5

Thanks for the information, but my account is the owner of the family group.

6

im dealing with the exact same issue

7

Hi all, Deleting all existing cookies, then restarting browser , then restarting Antigravity fixed the issue for me.

8

This approach works for me:
Step 1: Find the log folder of Antigravity IDE in path C:\Users\your-username\AppData\Roaming\Antigravity IDE\logs

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Step 2: Find the latest log folder and read the ls-main.log file, if you see the lines like this, it means that the internet is blocked(company policy, …etc).

2026-06-23 10:47:54.642 [error] [LS Main stderr] E0623 10:47:54.642443 18184 client.go:58] Post "``https://play.googleapis.com/log``": dial tcp 216.239.34.223:443: connectex: An attempt was made to access a socket in a way forbidden by its access permissions.
ERROR: logging before google.Init: E0623 10:47:54.642443 75 g3syslog.go:23] [Post "``https://play.googleapis.com/log``": dial tcp 216.239.34.223:443: connectex: An attempt was made to access a socket in a way forbidden by its access permissions.]

Step 3: If you have your own proxy, put it in “Environment Variables” with variable’s name HTTP_PROXY and HTTPS_PROXY

Step 4: Restart Antigravity and try again
Hope it works!

9

At Step 3, there is another way: Just setting proxy in antigravity IDE instead of Windows Environment Variables.
At login screen IDE, “Ctrl + ,” to open settings, then click Editor > Open Editor Settings > search proxy:

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