HTTP 400 “Invalid project resource name projects/” in Antigravity. Google Ai Pro subsciber. — Requesting Backend Reset

Hi everyone,

I’m hitting a wall with a persistent HTTP 400 Bad Request error while using Gemini 3 Flash via Antigravity and Cockpit Tools. I have an active Google AI Pro subscription, but I can’t get the agent to work.

The Issue: The agent terminates immediately with: Agent execution terminated due to error. Looking at the Sherlog/Trace logs, the request is sending an incomplete resource path: “Invalid project resource name projects/”. It seems like my Project ID is simply not being passed through, leaving the string empty after the slash.

My Setup:

OS: Windows 10/11

Specs: i5-13400f | RTX 3060 12GB | 16GB RAM

Tools: Latest versions of Antigravity

Everything I’ve tried so far (zero help):

  1. Signed out and back in multiple times.

  2. Created brand new Google Cloud projects and manually selected them.

  3. Wiped the local config folders in %APPDATA%\Antigravity.

  4. Tested with a completely fresh Gmail account — the 400 error persists.

  5. Disabled all proxies/VPNs and ensured 2FA is active.

It really feels like a backend provisioning glitch where my account isn’t correctly “linked” to a project ID on Google’s side.

2026-04-07 12:32:05.027 [info] I0407 12:32:05.026734 15688 http_helpers.go:166] Failed to make code assist backend request (fetchAdminControls): {

2026-04-07 12:32:05.027 [info] “error”: {

2026-04-07 12:32:05.027 [info] “code”: 400,

2026-04-07 12:32:05.027 [info] “message”: “Request contains an invalid argument.”,

2026-04-07 12:32:05.027 [info] “status”: “INVALID_ARGUMENT”

2026-04-07 12:32:05.027 [info] }

2026-04-07 12:32:05.027 [info] }

2026-04-07 12:32:05.027 [info]

 

СС:@moderator — could you please check my account status? I’m looking for a backend reset or any way to force-refresh my provisioning. I’m paying for Pro but haven’t been able to use it for days.

Everyone else has the same problem, so just forget about it—I don’t think they’ll fix it

Ruslan, if you use other email in google account, try to delete gmail. this work for me

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