Antigravity broken: getting only "Agent execution terminated due to error."

4 min read Original article ↗

1

Hi there,

I am no longer able to use Antigravity on mac since a few hours, i just keep getting “Agent execution terminated due to error.” no matter what i do, no matter which model i choose!

User Tier: Google AI Ultra Subscriber Product: Google Antigravity (Agentic IDE) Impact: Total blocker; unable to generate code or run logic flows.

Issue Description: I am experiencing a persistent error where Antigravity fails immediately upon generation. Despite having an active Ultra subscription and stable internet connection, the agent hangs or errors out regardless of the prompt complexity.

Troubleshooting Steps Already Attempted: I have attempted the following fixes with no success:

  1. Basic Reset: Restarted the physical machine and the Antigravity application.

  2. Authentication: Logged out and re-authenticated fully.

  3. Model Switching: Switched between models; the error persists.

  4. Context Isolation: Disabled all MCP (Model Context Protocol) servers to rule out external tool conflicts. (none were enabled)

  5. Cache Reset: Manually cleared/renamed the local config folder to force a schema refresh.

Current Behavior: The interface accepts the prompt, but the generation phase terminates instantly with a generic error (or hangs indefinitely), returning no output.

What should I do?

Thanks!

2

I took have exactly this issue and it has hit two of my Google accounts. The logs always say the same thing, that the API requests are being rejected.

also down for me about 2 hours ago on mac

Can confirm, been having the same issue all day. AI Ultra for business plan, all models displaying “Agent execution terminated due to error”.

​The most critical error appears early in the console logs, stating that the user is not authenticated even though I successfully logged in.

  • ​Error Message: “Cache(userInfo): Singleflight refresh failed: You are not logged into Antigravity.”

  • ​Consequence: The system failed to set the authentication token. Without this token, the application cannot authorize sessions or access user-specific components.

On my AI Pro account, however, everything seems to work just fine, on the same machine and seconds after logging off my Ultra account.

5

Having the same issue with the ultra plan from yesterday, are we banned or something lol?

6

Same. Ultra plan No models working. Works with pro account

Yeah same getting it too.

I’m up and running now! probably a service issue. I didn’t make any changes

mine has been down since last night and still not working this morning

10

Getting the same issue here with AI Ultra Workspace. Been a week now…

And it throws same error if you say “Continue“

12

I’ve been having the exact same issue all day, its so annoying. The output logs say 429 too many requests for my Pro account. When i switch to a non pro Google account, everything works.

Same Problem here. Pro Account not working anymore. Same Error on two different AG installations on two different machines, but with same Pro Account. Free accounts work. Also tried to reinstallation and removing recommended Folders. This is pretty annoying since I paid for this, while free accounts work. Google get into gear - NOW!

Same issue for me… But it stopped working at 11am (paris timezone)

15

same issue here since yesterday

16

This. It’s a little frustrating that you have to pay extra for an Ultra Abo just for Antigravity, and now it’s not working for hours, while it works fine with a free account.

17

same here. ultra abo and does not work

18

Ultra Plan, same problems here for the whole night! That really sucks

Pro plan here. Not working at all, 0 agents working. I used Antigravity: Reset onboarding and its the same, it doesnt work. Man… we are paying for nothing.

Ultra plan. Having that issue for 5 hours already