Antigravity can not wake up after ther website login on DGX Spark(ubuntu 24,arm cpu)

Google Antigravity
1

Subject: Linux login bug: browser auth succeeds but Antigravity fails on callback with BigInt serialization error

Environment:

  • Ubuntu 24.04.3 LTS
  • Antigravity installed via apt
  • Antigravity version: 1.107.0

Problem:
Browser-based login succeeds, but Antigravity does not complete sign-in.

What I observed:

  • The browser login flow succeeds
  • The auth success page says: “You have successfully authenticated. You should be redirected back to the product.”
  • The antigravity:// URL handler is registered correctly
  • xdg-mime query default x-scheme-handler/antigravity returns antigravity-url-handler.desktop
  • xdg-open 'antigravity://test' launches Antigravity when the app is closed
  • If Antigravity is already running, the callback does not wake the app or complete login

Relevant logs:
[BrowserOnboardingClientMainService] Starting browser onboarding server
[BrowserOnboardingClientServer] Browser onboarding server started on http://localhost:37889
[uncaught exception in main]: TypeError: Do not know how to serialize a BigInt

Stack trace:
TypeError: Do not know how to serialize a BigInt
at JSON.stringify ()
at vD (file:///usr/share/antigravity/resources/app/out/main.js:31:11765)
at …

Conclusion:
This looks like a Linux desktop client bug in the browser onboarding / deep-link callback flow. The callback reaches the app, but the main process crashes when handling it.