I’m a Google AI Pro subscriber and getting a persistent HTTP 400 error in Antigravity.
Error: Invalid project resource name projects/
Status: INVALID_ARGUMENT
TraceID: 0x3741ceb9c5ad6869
Steps tried:
Nothing worked. Please check my account provisioning.
OS: Windows
Thank you for bringing this to our attention. We have escalated the issue to our internal teams for a thorough investigation.
To ensure our engineering team can investigate and resolve these issues effectively, we highly recommend filing bug reports directly through the Antigravity in-app feedback tool. You can do this by navigating to the top-right corner of the interface, clicking the Feedback icon, and selecting Report Issue.
Hi
Had this error since Feb 10th and still getting it in Antigravity 1.18.3 (just released)
Trajectory ID: eb23153a-c15
Error: HTTP 400 Bad Request
Sherlog:
TraceID: 0x6bfa
Headers: {“Alt-Svc”:[“h3=\”:443\“; ma=2592000,h3-29=\”:443\“; ma=2592000”],“Content-Length”:[“382”],“Content-Type”:[“text/event-stream”],“Date”:[“Thu, 19 Feb 2026 14:38:08 GMT”],“Server”:[“ESF”],“Server-Timing”:[“gfet4t7; dur=654”],“Vary”:[“Origin”,“X-Origin”,“Referer”],“X-Cloudaicompanion-Trace-Id”:[“6bfa4c44594dd6fa”],“X-Content-Type-Options”:[“nosniff”],“X-Frame-Options”:[“SAMEORIGIN”],“X-Xss-Protection”:[“0”]}
{
“error”: {
“code”: 400,
“details”: [
{
“@type”: “type.googleapis.com/google.rpc.BadRequest”,
“fieldViolations”: [
{
“description”: “Invalid project resource name”,
“field”: “name”
}
]
}
],
“message”: “Invalid project resource name projects/”,
“status”: “INVALID_ARGUMENT”
}
}
Gemini is offering up lots of fixes, none of which work. Is there any official guidance?
Antigravity works with free account but not woth AI pro account
Many thanks
John
Should have added, raised bug via app to no avail or response
Had the same issue for over a 2 week now. After updating to the latest version it still persists. No reaction to my bug reporting. Please fix this issue. Antigravity is not usable like this.
Finally found a solution that worked for me, so check it out, it might apply to you : Critical Bug: Persistent HTTP 400 "Invalid project resource name projects/" even after Gmail switch - #27 by mattorq
Worked also for me now, thank you for the hint. If somebody else likes to try it, this is the link to google support how you can delete your gmail from your Google Account:
