Antigravity Authentication Required Bug

Google Antigravity
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{C14F9C33-F92E-4F23-8DEA-49B800ED2464}
{C14F9C33-F92E-4F23-8DEA-49B800ED2464}816×191 14.2 KB

Environment:

  • Antigravity version v1.15.8

  • OS: Windows 11 Pro

Issue Description: Despite successfully logging in, I continue to receive the “Authentication Required: Please sign in” prompt. The application fails to recognize the active session.

Troubleshooting Attempted: I have attempted the following steps, but the issue persists:

  • Clean Reinstall: Uninstalled the application and manually deleted all residual files in:

    • %APPDATA%\Antigravity (Roaming)

    • %LOCALAPPDATA%\Programs\Antigravity

    • %USERPROFILE%\.antigravity

    • %USERPROFILE%\.gemini

  • Network Changes: Tested using a 5G mobile hotspot and a VPN (connected to various regions) to rule out IP blocking.

  • Security: Added an exception to my antivirus (Bitdefender).

  • Version Check: Tried reinstalling both the latest version (1.15.8) and several older versions.

  • Account: Attempted to log in using different Google accounts.

Question: Is this a known global issue, or is there a specific local configuration I might be missing? Any solutions would be appreciated.

2

[Solved] It was an Antivirus/Firewall False Positive

The Fix: I found that my antivirus was blocking the specific language server executable, not just the main app. I added an exception/exclusion for the following file:

%LocalAppData%\Programs\Antigravity\resources\app\extensions\antigravity\bin\language_server_windows_x64.exe

Important Note: Just adding an exception for the main application (%LocalAppData%\Programs\Antigravity\Antigravity.exe) is not enough; you must allow the language server executable directly.

3

Hello @Khang_Vu,

We appreciate you following up to confirm the resolution. It is good to know that the login flow is functioning correctly for you now. If you encounter any further issues, please do not hesitate to reach out.

4

I’m in openSUSE TW, yesterday I upgraded the OS and the applications, including Antigravity to the version 1.16.5.

Today I opened the application and it remains to ask for login despite I have succesfully logged in.

5

Solution: Resetting the ‘User’ Configuration Folder

  1. Close Antigravity IDE: Ensure all processes are completely terminated via Task Manager if necessary.

  2. Locate the Configuration Directory: Open File Explorer and navigate to the following path:

    C:\Users\{username}\AppData\Roaming\Antigravity

    (Note: If not found there, check AppData\Local\Antigravity)

  3. Backup or Delete the ‘User’ Folder:

    • Find the folder named User.

    • Rename it to something like User_backup (recommended for safety) or Delete it.

  4. Restart the IDE: Antigravity will automatically regenerate a clean User folder upon startup, which should resolve the “command not found” and Git initialization issues