[Bug] App window opens briefly then closes on startup (macOS Intel)

[IslamAlorabI]

Describe the Bug

The application briefly opens a window on macOS (Intel), then immediately closes/crashes on startup.

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Steps To Reproduce

1. Install the application on macOS (Intel)
2. Open the app from Applications or Launchpad
3. Notice the window appears for a split second, then closes

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Expected Behavior

The application should launch normally and remain open, displaying its main interface.

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Actual Behavior

The app window flashes briefly and then closes instantly without any error message or crash dialog.

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Screen Record

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Environment

• OS: macOS Sequoia 15.7.5 (Intel)
• App Version: 0.11.1
• Node.js Version: xx.x.x

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Additional Context

• Tried installing a previous version — same issue occurs
• Happens every time on launch

[Draculabo]

Hi, sorry for the inconvenience.

Since I'm unable to capture the detailed error logs from the crash, could you please try running the application via Terminal using the following command?

Once the app starts, please try to reproduce the issue and then copy and paste the logs printed in the terminal back here.

/Applications/Antigravity\ Manager.app/Contents/MacOS/Antigravity\ Manager

Thanks for your help!

[Draculabo]

Also, I noticed you are using v0.11.1. Could you let me know if you encountered this same issue in version 0.11.0 as well?

[IslamAlorabI]

Thanks for the hint. The app crashes on launch with Error: Could not get code signature for running application. This happens during the checkForUpdates step — the auto-updater (update-electron-app) tries to verify the app's code signature but fails because the app isn't properly signed. The fix is either:

Properly codesign the app during the build/packaging step (e.g. via electron-builder with a valid Apple Developer certificate)
Or wrap the checkForUpdates call in a try/catch so a missing signature doesn't crash the entire app.

But I managed to fix it for now by running this sign command, and it worked fine:

codesign --force --deep --sign - "/Applications/Antigravity Manager.app"