libnyanpasu/clash-nyanpasu · error

failed to uninstall service, exit code

Error message

failed to uninstall service, exit code: {}

What it means

uninstall_service ran the elevated service uninstaller (RunasCommand on Windows, sudo on macOS) and the child process exited non-zero, so the nyanpasu service was not removed. This is a check on the spawned uninstaller's ExitStatus: failure typically means the elevation prompt was denied or the uninstaller could not remove the service registration.

Solutions

  1. Retry the uninstall and accept the elevation prompt.
  2. Run the service binary manually with the `uninstall` argument as administrator to see the underlying error.
  3. Check whether the service is still running; stop it before uninstalling.
  4. Manually delete the OS service registration (e.g. `sc delete` on Windows / launchd plist removal on macOS) if the uninstaller keeps failing.
Defensive patterns

Strategy: validation

When it happens

Trigger: Thrown at backend/tauri/src/core/service/control.rs:166 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of libnyanpasu/clash-nyanpasu@f7dbce2997 (2026-09-08). Data as JSON: /api/errors/b230fd6cc8ac4f36. Report an issue: GitHub.

Appendix: source

Thrown at backend/tauri/src/core/service/control.rs:166

    })
    .await??;
    if !child.success() {
        anyhow::bail!(
            "failed to uninstall service, exit code: {}",
            child.code().unwrap()
        );
    }
    Ok(())
}

View on GitHub (pinned to f7dbce2997)