gradle/gradle · error · DaemonUnavailableException

This daemon has stopped.

Error message

This daemon has stopped.

What it means

Error "This daemon has stopped." thrown in gradle/gradle.

Source

Thrown at platforms/core-runtime/launcher/src/main/java/org/gradle/launcher/daemon/server/DaemonStateCoordinator.java:394

        try {
            result = this;
            condition.signalAll();
        } finally {
            lock.unlock();
        }
    }

    private void onStartCommand(String commandDisplayName) {
        lock.lock();
        try {
            switch (state) {
                case Broken:
                    throw new DaemonUnavailableException("This daemon is in a broken state and will stop.");
                case StopRequested:
                    throw new DaemonUnavailableException("This daemon is currently stopping.");
                case Stopped:
                case ForceStopped:
                    throw new DaemonUnavailableException("This daemon has stopped.");
                case Busy:
                case Canceled:
                    throw new DaemonUnavailableException(String.format("This daemon is currently executing: %s", currentCommandExecution));
                case Idle:
                    break;
            }

            LOGGER.debug("Command execution: started {} after {} minutes of idle", commandDisplayName, getIdleMinutes());
            try {
                setState(DaemonState.Busy);
                onStartCommand.run();
                currentCommandExecution = commandDisplayName;
                result = null;
                updateActivityTimestamp();
                updateCancellationToken();
                condition.signalAll();
            } catch (Throwable throwable) {
                setState(DaemonState.Broken);

View on GitHub (pinned to 534f27719b)

Solutions

1. Retry the command; a new daemon will be started automatically.
2. Run 'gradle --status' to check for lingering daemons and 'gradle --stop' to clean them up.

When it happens

Trigger: A command is sent to a daemon that has fully stopped.

Common situations: Stale daemon registry entries pointing at terminated daemon processes.

AI-assisted analysis of gradle/gradle@534f27719b (2026-08-22). Data as JSON: /api/errors/afc51b9db221f76f. Report an issue: GitHub.