Verify your account to continue" (403) — Multiple Pro accounts affected on same device

Google Antigravity
, ,
1

Hi everyone,

I’ve been stuck on this for several days now and have exhausted every local troubleshooting avenue, so I’m posting the full technical picture in case it helps the team spot a pattern, or helps others hitting the same wall.

Summary of the problem:
Antigravity IDE was working normally until my computer lost power and stayed off for about 40 hours. After restarting, I’ve been stuck in an authentication/eligibility loop ever since, with no success across multiple days of testing.

Errors observed (in order of appearance):

  1. “There was an unexpected issue setting up your account. Your account is not eligible for Gemini Code Assist for individuals at this time.”
  2. In-chat: “Verification Required” with rotating Error IDs.
  3. Clicking “Complete verification” redirects to accounts.google.com/signin/continue, which returns an HTTP 500 Server Error.
  4. A separate sign-in attempt returned: localhost:4774/oauth-callback?error=access_denied — meaning Google’s own authorization server explicitly denied the grant during the OAuth handshake itself, before even reaching the eligibility check stage.
  5. Most recently, the sign-in screen now shows: “Further action is required to use Antigravity — Please verify your account, then sign in again to continue,” with “Verify” and “Sign in again” buttons that both loop back to the same result.

Log-confirmed root cause:
My local language_server.log shows OAuth authentication succeeding locally (Auth succeeded, refreshing features and managers), but every subsequent call to the model is explicitly rejected server-side:
PERMISSION_DENIED (code 403): Verify your account to continue.

This confirms the rejection happens on Google’s backend after successful local authentication — not a local configuration issue.

Full troubleshooting completed (all unsuccessful):

  • Cleared all cache, session storage, and lock files under %APPDATA%\Antigravity IDE
  • Manually updated the client to the latest available build (2.5
2

Hi @Hussein_Naser, Welcome to the Forum!

A few things to try:

  1. Verify in Chrome. Sign in at myaccount.google.com, go to Security, click “Yes, it was me” on any flagged sign-ins, and finish the Security Checkup.
  2. Reset Antigravity’s access. Under Security → Third-party connections, remove Antigravity, then sign in again from the app.
  3. Keep it clean. Use one Chrome profile with only this account signed in, and turn off any VPN.
  4. Wait, then sign in again. Give it a few hours, then click Sign in again in Antigravity (not Verify).

If it’s still stuck, let us know!

3

Yes, I still cannot proceed despite following the above steps; the account was registered last month.