用rocketmq mqttdemo的MqttConsumer始终无法接收到消息，遇到过这个问题吗？

用rocketmq mqttdemo的MqttConsumer始终无法接收到消息，遇到过这个问题吗？

{
  "configTable": {
    "LMQ": {
      "LMQ_CONNECT_NODES": "192.168.1.21",
      "notifyTopic": "notifyTopic/+",
      "event-topic": "event-topic/+",
      "retryTopic": "retryTopic/+",
      "ALL_FIRST_TOPICS": "notifyTopic,retryTopic,event-topic"
    }
  }
}