[Bug] App crashes on login: TypeError: Do not know how to serialize a BigInt at JSON.stringify

Google Antigravity
1

Environment:

  • OS: Windows
  • Version: Latest (as of March 2026)

Issue:
After a successful OAuth login in the browser, the Antigravity desktop app crashes immediately when receiving the oauth-success callback. It completely blocks me from entering the IDE.

Error Log (see attached screenshot):
[uncaught exception in main]: TypeError: Do not know how to serialize a BigInt
at JSON.stringify ()
at vD (file:///E:/Development/Antigravity/Antigravity/resources/app/out/main.js:31:11765)

Troubleshooting Steps I’ve Already Taken:

  1. Completely cleared %appdata%\Antigravity and %localappdata%\Antigravity caches.
  2. Bypassed browser protocol restrictions by manually passing the callback via CMD: start "" "antigravity://oauth-success?app=antigravity"
  3. The local server (port 12314) successfully receives the signal, but the main.js instantly throws the BigInt serialization error and crashes.

It seems the current version lacks the logic to handle BigInt conversions in the auth response JSON. Could the team look into this or provide a link to a stable previous version (like 1.19.6)? I am completely locked out of my workflow.

2

Hi @chengchengowen ,

Thank you for bringing these concerns to our attention. Please be assured that I have shared your feedback with our internal team for further review.