sipeed/picoclaw · error

mqtt: publish failed: %w

Error message

mqtt: publish failed: %w

What it means

Error "mqtt: publish failed: %w" thrown in sipeed/picoclaw.

Source

Thrown at pkg/channels/mqtt/mqtt.go:250

	}

	clientID := strings.TrimPrefix(msg.ChatID, "mqtt:")
	if clientID == msg.ChatID {
		logger.WarnCF("mqtt", "Send called with unexpected chatID format", map[string]any{"chat_id": msg.ChatID})
		return nil, nil
	}

	topic := fmt.Sprintf("%s/%s/%s/response", c.topicPrefix(), c.cfg.AgentID, clientID)

	data, err := json.Marshal(mqttPayload{Text: msg.Content})
	if err != nil {
		return nil, fmt.Errorf("mqtt: failed to marshal outbound payload: %w", err)
	}

	token := c.client.Publish(topic, c.qos, false, data)
	token.Wait()
	if err := token.Error(); err != nil {
		return nil, fmt.Errorf("mqtt: publish failed: %w", err)
	}

	logger.DebugCF("mqtt", "Published response", map[string]any{"topic": topic})
	return nil, nil
}

View on GitHub (pinned to 49183d7e8d)

When it happens

Trigger: Thrown at pkg/channels/mqtt/mqtt.go:250 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of sipeed/picoclaw@49183d7e8d (2026-08-15). Data as JSON: /api/errors/5ff701288217f5f0. Report an issue: GitHub.