有一个频道：

<integration:channel id="sampleChannel">
</integration:channel>

还有一个kafka出站通道，通道属性为samplechannel值：

<int-kafka:outbound-channel-adapter id="kafkaOutboundChannelAdapter"
                                        kafka-template="template"
                                        auto-startup="false"
                                        channel="sampleChannel"
                                        topic="foo"
                                        sync="false"
                                        send-failure-channel="errorChannel"
                                        partition-id-expression="1">
    </int-kafka:outbound-channel-adapter>

当消息发送并到达samplechannel时，此异常引发：

org.springframework.messaging.MessageDeliveryException: Dispatcher has no subscribers for channel 'org.springframework.context.support.ClassPathXmlApplicationContext@1623b78d.sampleChannel'

为什么Kafka不能从samplechannel接收信息？