[Antigravity] HTTP 400: Invalid project resource name projects/ (Active AI Pro Subscriber)

Google Antigravity
1

I’m reporting a persistent issue where I cannot access Antigravity despite having an active Google AI Pro subscription.

The Error: When attempting to log in or initialize, I receive a 400 Bad Request. The backend response indicates that the project resource name is malformed (missing the project ID).

Error Details:

  • Message: Invalid project resource name projects/

  • Status: INVALID_ARGUMENT

  • TraceID: 0x7281a379ef804908

  • Timestamp: Feb 14, 2026

What I’ve tried:

  1. Confirmed my Google AI Pro subscription is active.

  2. Cleared browser cookies and Antigravity local cache (~/.antigravity).

  3. Switched network nodes (ensuring US-based IP).

  4. Attempted re-login multiple times.

It seems like my account’s Pro entitlement is not correctly triggering the auto-provisioning of a Google Cloud project ID within Antigravity.

Could a moderator or engineer please look into my TraceID to see why the project ID is being returned as empty?

2

Had same issue. This worked for me: Critical Bug: Persistent HTTP 400 "Invalid project resource name projects/" even after Gmail switch - #27 by mattorq

3

Come on Google sort this out.