Channel shutdown: channel error； protocol method: ＃method＜channel. close＞(reply-code=406, reply-text=

Complete error

CachingConnectionFactory.java:1278 - Channel shutdown: channel error; protocol method: #method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - unknown delivery tag 1, class-id=60, method-id=80)

reason ： Consumers have ack confirm , and spring-boot-starter-amqp The default is Automatically sign in information The way , The consumption result was signed twice , It is written in our code to sign in manually , But the system also signs automatically once , So I thought about whether it is necessary to configure rabbitmq Manually sign , The automatic signing function will not be triggered

channel.basicAck(message.getMessageProperties().getDeliveryTag(), true);

resolvent ： Remove the automatic sign in function

spring:
  rabbitmq:
    host: 127.0.0.1
    port: 5672
    username: guest
    password: guest
    # Consumer configuration 
    listener:
      simple:
        # Automatic sign in auto  Manual  manual
        acknowledge-mode: manual