multica-ai/multica · error

failed to start new daemon at %s: %w

Error message

failed to start new daemon at %s: %w

What it means

Error "failed to start new daemon at %s: %w" thrown in multica-ai/multica.

Source

Thrown at server/cmd/multica/cmd_daemon.go:1134

		if err := child.Start(); err != nil {
			// Runtimes were already deregistered by triggerRestart() before handoff.
			// The supervisor-spawned successor re-registers on startup; do not
			// duplicate cleanup here.
			if isAccessDeniedSpawnErr(err) {
				child = exec.Command(restartBin, args...)
				child.Stdout = logFile
				child.Stderr = logFile
				child.SysProcAttr = daemonSysProcAttr(false)
				if err := child.Start(); err != nil {
					logFile.Close()
					logger.Error("failed to start new daemon (no breakaway)", "error", err)
					return fmt.Errorf("failed to start new daemon at %s without breakaway: %w", restartBin, err)
				}
			} else {
				logFile.Close()
				logger.Error("failed to start new daemon", "error", err)
				return fmt.Errorf("failed to start new daemon at %s: %w", restartBin, err)
			}
		}
		logFile.Close()
		child.Process.Release()

		// Write new PID file.
		pidPath := daemonPIDPathForProfile(profile)
		os.WriteFile(pidPath, []byte(strconv.Itoa(child.Process.Pid)), 0o644)

		logger.Info("new daemon started", "pid", child.Process.Pid)
	}

	return nil
}

// --- daemon restart ---

// requireDaemonRestartPreflight validates, before a running daemon is

View on GitHub (pinned to 2c0912b6ec)

Solutions

1. Inspect the wrapped error and the daemon log for startup details.

When it happens

Trigger: Thrown at server/cmd/multica/cmd_daemon.go:1134 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of multica-ai/multica@2c0912b6ec (2026-08-15). Data as JSON: /api/errors/2e02c158dd1066c0. Report an issue: GitHub.