# Antigravity: Agent execution terminated due to unknown error **URL:** \ **Category:** Google Antigravity\ **Tags:** bug\ **Created:** [August 17, 2026, 9:56am UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699 "2026-08-17T09:56:33Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Vineet\_Dhiman](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/vineet_dhiman/32/143481_2.png) [@Vineet\_Dhiman](https://discuss.ai.google.dev/u/Vineet_Dhiman)\ **Post date:** [August 17, 2026, 9:56am UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/1 "2026-08-17T09:56:33Z")
# Antigravity: Agent execution terminated due to unknown error ## Description I’m consistently getting the following error in **Google Antigravity** when running an agent: > **Unknown: Agent execution terminated due to error.** The agent runs for approximately 1 second and then terminates without providing any actionable error details. **Error ID:** `39ac0ae5-83fa-4180-9543-3b535f75ab63-7` ### Expected behavior The agent should execute normally, or Antigravity should provide a meaningful error message explaining what caused the execution to fail. ### Actual behavior The agent immediately terminates with: `Unknown: Agent execution terminated due to error.` ### Environment - **Product:** Google Antigravity - **OS:** macOS - **Issue:** Agent execution - **Duration before failure:** ~1 second ### Additional information I have attached a screenshot showing the error. Could you please investigate the error ID and provide guidance on what is causing the agent execution to terminate? Thanks. ---
**Author:** ![Ambati\_Rajendra](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/ambati_rajendra/32/31584_2.png) [@Ambati\_Rajendra](https://discuss.ai.google.dev/u/Ambati_Rajendra)\ **Post date:** [August 17, 2026, 11:44am UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/2 "2026-08-17T11:44:17Z")
Hi @Vineet_Dhiman, Could you please provide a few more details: 1. What version of the Antigravity you are using? 2. Could you share the logs from the Antigravity console or the background task status around the time of the crash? You can find these in the application log directory or via the terminal output. ---
**Author:** ![hemanth-nag](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/hemanth-nag/32/145450_2.png) [@hemanth-nag](https://discuss.ai.google.dev/u/hemanth-nag)\ **Post date:** [August 25, 2026, 6:26pm UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/3 "2026-08-25T18:26:09Z")
Hi, I am facing the same issue. I do have AI pro subscription. Been facing the issue since 2 days. I am using antigravity IDE, i don’t see any logs in any console… Antigravity version: 2.5.5 (latest - no updates available as of 25 Aug, 2026) ![Screenshot 2026-08-25 at 10.24.17 PM](https://d3qe71uytubmmx.cloudfront.net/original/3X/6/2/626332be870a7a2d9108f1fc810575adb5d93db9.png) ---
**Author:** ![Leonel\_Arellano](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/leonel_arellano/32/142195_2.png) [@Leonel\_Arellano](https://discuss.ai.google.dev/u/Leonel_Arellano)\ **Post date:** [August 25, 2026, 9:10pm UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/4 "2026-08-25T21:10:10Z")
Hi, I’m having the exact same problem as you. I get the same error when using an agent. I was developing a system in React, and I left it untouched for about a month. A week and a half ago, I went back to the Antigravity IDE, and everything was working fine until yesterday when I logged in and got this message. There are no details or anything. I uninstalled the application, cleaned up all traces, and reinstalled it, but during the installation process, I encountered another error. I don’t know if it’s related. I really need help, please! I’ve already tried both a pro and a free account. ![Captura de pantalla 2026-08-24 203011](https://d3qe71uytubmmx.cloudfront.net/original/3X/0/2/02fd17a35320554ae56647895aa6cfef4f60e9d6.png) ---
**Author:** ![Vicky\_Wang](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/vicky_wang/32/145685_2.png) [@Vicky\_Wang](https://discuss.ai.google.dev/u/Vicky_Wang)\ **Post date:** [August 26, 2026, 11:53pm UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/5 "2026-08-26T23:53:05Z")
I have the same issue since I upgrade the IDE to the latest yesterday 20260826. environment is windows 10 machine for the Antigravity IDE. – no luck today (login account, succussed). Try to use antigravity extension for VS code it has been blocked by authentication part. It’s very annoyed as the old extension used to work but depreciated few months back. then i switch to antigravity IDE. Now, IDE has issue then I go back to vs code, and new version extension blocked by authentication. I have pro annual subscription. ---
**Author:** ![hemanth-nag](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/hemanth-nag/32/145450_2.png) [@hemanth-nag](https://discuss.ai.google.dev/u/hemanth-nag)\ **Post date:** [September 2, 2026, 6:24am UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/6 "2026-09-02T06:24:36Z")
Downgrading the version resolved the issue for me. > [@Agent execution terminated due to error. ---2.5.2](https://discuss.ai.google.dev/t/agent-execution-terminated-due-to-error-2-5-2/178086): > > Agent execution terminated due to error. Updating Antigravity IDE v2.5.2 has been causing errors all the time. My solution reverted to Antigravity IDE v2.1.1 Return to the website of Antigravity IDE v2.1.1 ---
**Author:** ![2088\_yj](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/2088_yj/32/112232_2.png) [@2088\_yj](https://discuss.ai.google.dev/u/2088_yj)\ **Post date:** [September 3, 2026, 3:53am UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/7 "2026-09-03T03:53:45Z")
agy Version: 2.12.0 Is the problem still unresolved? ---
**Author:** ![sadmiral](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/sadmiral/32/148193_2.png) [@sadmiral](https://discuss.ai.google.dev/u/sadmiral)\ **Post date:** [September 8, 2026, 9:07am UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/8 "2026-09-08T09:07:23Z")
if downgrading always the solution of this antigravity problems, they it means this agent code is really bad and want their user to leave them ? im tired keep facing new error every month and the solution only “downgrading” ---
**Author:** ![Justin\_JIA](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/justin_jia/32/148564_2.png) [@Justin\_JIA](https://discuss.ai.google.dev/u/Justin_JIA)\ **Post date:** [September 9, 2026, 3:01pm UTC](https://discuss.ai.google.dev/t/antigravity-agent-execution-terminated-due-to-unknown-error/178699/9 "2026-09-09T15:01:11Z")
I’m still facing that problem on version 2.12.2，Antigravity on Windows. However, the claude models and ChatGPT model work well.