一共有两个项目，一个比较简单只有es，另外一个复杂，有微服务等之类的（比较多）。
简单的项目es不报错，复杂的项目es报错。（两份es配置是相互复制的）错误如下。这个问题google、百度都没有搜到。
老师见多识广，想请教一下这是什么错误？？
起初以为是通信不通，但是另外一个简单的项目可以随便启动关闭。有点不太懂。

Exception in thread "elasticsearch[_client_][management][T#1]" java.lang.AbstractMethodError: org.elasticsearch.transport.TcpTransport.sendMessage(Ljava/lang/Object;Lorg/elasticsearch/common/bytes/BytesReference;Ljava/lang/Runnable;)V

at org.elasticsearch.transport.TcpTransport.internalSendMessage(TcpTransport.java:1111)

at org.elasticsearch.transport.TcpTransport.sendRequestToChannel(TcpTransport.java:1093)

at org.elasticsearch.transport.TcpTransport.executeHandshake(TcpTransport.java:1600)

at org.elasticsearch.transport.TcpTransport.openConnection(TcpTransport.java:568)

at org.elasticsearch.transport.TcpTransport.openConnection(TcpTransport.java:114)

at org.elasticsearch.transport.TransportService.openConnection(TransportService.java:351)

at org.elasticsearch.client.transport.TransportClientNodesService$SniffNodesSampler$1.doRun(TransportClientNodesService.java:506)

at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:638)

at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

at java.lang.Thread.run(Thread.java:748)