Google Sign-In Stuck on Login Screen in Antigravity

Google Antigravity
1

Product: Google Antigravity (desktop app)
Platform: macOS
Account type: Personal Google account with Google One Ultra / Google AI plan

Summary

When I use “Sign in with Google” in the Antigravity desktop app on macOS, the browser OAuth flow completes successfully and the system prompts me to open Antigravity.app. After I click “Open Antigravity.app”, the app comes to the foreground but the sign‑in never completes: the UI stays on the login screen without any error message or progress. This only happens for a specific personal account; other Google accounts can sign in on the same machine.

Steps to reproduce

  1. Open the Antigravity desktop app on macOS.
  2. Click Sign in with Google (not the GCP project option).
  3. Complete the sign‑in flow in Chrome:
    • Choose the affected personal Google account.
    • Approve any requested permissions.
  4. Chrome shows the standard system prompt: “Open Antigravity.app?”
  5. Click Open Antigravity.app.

Expected result

  • Antigravity should receive the OAuth result, finalize the login, and:
    • Dismiss the login screen.
    • Load the workspace under the signed‑in account.
    • Apply my Google One Ultra / AI subscription limits for this account.

Actual result

  • Antigravity is brought to the foreground after I click Open Antigravity.app, but:
    • The app remains stuck on the login screen.
    • There is no error message or spinner indicating progress.
    • The account never appears as signed in.
  • This happens every time with this specific personal account.

Scope / additional observations

  • The same behavior occurs after:
    • Fully quitting and reopening Antigravity.
    • Rebooting macOS.
    • Trying different default browsers (Chrome, Safari) and disabling extensions/VPN.
    • Clearing cookies/cache for Google and Antigravity domains.
    • Reinstalling Antigravity and removing its local support/cache folders.
  • Other Google accounts can sign in successfully on the same Mac using the exact same steps.
  • Because of this, I cannot use my personal account with Google One Ultra / Google AI plan inside Antigravity, even though it works in other Google AI products.
  • I do not want to use the GCP project sign‑in path; I only need the regular Google account sign‑in to work for this personal account.

Request

From my perspective, the OAuth redirect and deep link to Antigravity.app work (the app gets focus), but the IDE never consumes or applies the login result for this account, while other accounts work fine. This looks like an account‑specific provisioning or backend state issue.

Please:

  1. Check the Antigravity backend / provisioning state for this specific Google account.
  2. Reset/unblock whatever per‑account state might be preventing the IDE from completing sign‑in after OAuth succeeds.
  3. Confirm whether there are any flags, restrictions, or eligibility issues on this account that would cause the login flow to silently fail at this stage.

Optional diagnostic details you can add

  • Apple Macbook Air M4
  • macOS version: macOS 26.3.1
  • Antigravity version: Antigravity1.20.5
  • Default browser: Chrome Version 145.0.7632.160
    Safari Version 26.3.1 (21623.2.7.11.7)
  • Whether the same account fails on another machine or OS, if you’ve tested that
3 Likes
2

Experiencing the same right now. I can log in without any trouble on another account, though. What is going on?

3

Hi @Apex_Games ,

Thank you for bringing these concerns to our attention. Please be assured that I have shared your feedback with our internal team for further review.

4

Experiencing this error too. Already try to reinstall Antigravity app, logout from all account on Google Chrome.

Even with my Google AI Pro subscription.

5

Same here, any solution?

6

i don’t have a ton of experience in mac - but i know your steps would be similar with the exception of how apple stores Accounts in Settings.
I did up a whole guide addressing this last week, though my mac-ish isn’t fluent :slight_smile:

7

I’m experiencing the exact same issues and symptoms on both of my accounts.

I am a Google One Ultra / AI subscriber, and I have been unable to log in for two weeks now. It is frustrating to have a paid subscription that I cannot access due to this persistent bug.

I’ve tried the same troubleshooting steps mentioned above, but nothing works. Please look into this urgently and provide a fix.

8

When it happens to me, I restart Antigravity twice in a row, making sure it has no running processes after each stop. Seems to work.

9

i’ve had the languageserver get stuck on windows a few times, i usually reboot because my uptime can get up there.

1 Like
10

Update:
These steps worked for me. Im using Antigravity IDE in Linux Crostini (chromebook).
Close the IDE completely and run these commands in your Chromebook Terminal:

Navigate to the config folder

cd ~/.config/Antigravity
Remove the session database and cookies

rm -rf Cookies Cookies-journal
rm -rf “Local Storage”
rm -f state.vscdb

Clear the Network State which often holds the ‘pending’ login flag

rm -f “Network Persistent State”