spring-cloud-netflix: Turbine Stream throws JsonParseException: Unexpected character (',' (code 44)): Expected space separating root-level values

I am new to Spring Cloud and I try to write Turbine Stream with RabbitMQ demo, but always fail and log:

com.fasterxml.jackson.core.JsonParseException: Unexpected character (',' (code 44)): Expected space separating root-level values
 at [Source: (String)"123,34,111,114,105,103,105,110,34,58,123,34,104,111,115,116,34,58,34,49,55,50,46,49,54,46,49,48,54,46,57,51,34,44,34,112,111,114,116,34,58,57,48,49,51,44,34,115,101,114,118,105,99,101,73,100,34,58,34,101,117,114,101,107,97,45,99,111,110,115,117,109,101,114,45,104,121,115,116,114,105,120,34,44,34,105,100,34,58,34,97,112,112,108,105,99,97,116,105,111,110,45,49,34,125,44,34,101,118,101,110,116,34,58,34,109,101,115,115,97,103,101,34,44,34,100,97,116,97,34,58,123,34,116,121,112,101,34,58,34,72,121,11"[truncated 6105 chars]; line: 1, column: 5]
	at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1798) ~[jackson-core-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:663) ~[jackson-core-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.core.base.ParserMinimalBase._reportUnexpectedChar(ParserMinimalBase.java:561) ~[jackson-core-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.core.base.ParserMinimalBase._reportMissingRootWS(ParserMinimalBase.java:608) ~[jackson-core-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.core.json.ReaderBasedJsonParser._verifyRootSpace(ReaderBasedJsonParser.java:1654) ~[jackson-core-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.core.json.ReaderBasedJsonParser._parsePosNumber(ReaderBasedJsonParser.java:1297) ~[jackson-core-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.core.json.ReaderBasedJsonParser.nextToken(ReaderBasedJsonParser.java:744) ~[jackson-core-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:4129) ~[jackson-databind-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3988) ~[jackson-databind-2.9.3.jar:2.9.3]
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2992) ~[jackson-databind-2.9.3.jar:2.9.3]
	at org.springframework.cloud.netflix.turbine.stream.HystrixStreamAggregator.sendToSubject(HystrixStreamAggregator.java:73) ~[spring-cloud-netflix-turbine-stream-2.0.0.M8.jar:2.0.0.M8]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161]
	at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:120) [spring-expression-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:111) [spring-expression-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.expression.spel.ast.MethodReference.access$000(MethodReference.java:54) [spring-expression-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.expression.spel.ast.MethodReference$MethodValueRef.getValue(MethodReference.java:384) [spring-expression-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:89) [spring-expression-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:116) [spring-expression-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:371) [spring-expression-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:169) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:157) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.util.MessagingMethodInvokerHelper.invokeExpression(MessagingMethodInvokerHelper.java:614) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.util.MessagingMethodInvokerHelper.invokeHandlerMethod(MessagingMethodInvokerHelper.java:605) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.util.MessagingMethodInvokerHelper.processInternal(MessagingMethodInvokerHelper.java:468) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.util.MessagingMethodInvokerHelper.process(MessagingMethodInvokerHelper.java:312) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.handler.MethodInvokingMessageProcessor.processMessage(MethodInvokingMessageProcessor.java:104) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.handler.ServiceActivatingHandler.handleRequestMessage(ServiceActivatingHandler.java:93) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:109) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:158) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:132) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:105) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:73) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:445) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:394) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:181) [spring-messaging-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:160) [spring-messaging-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:47) [spring-messaging-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:108) [spring-messaging-5.0.5.RELEASE.jar:5.0.5.RELEASE]
	at org.springframework.integration.endpoint.MessageProducerSupport.sendMessage(MessageProducerSupport.java:203) [spring-integration-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter.access$1100(AmqpInboundChannelAdapter.java:59) [spring-integration-amqp-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter$Listener.lambda$onMessage$0(AmqpInboundChannelAdapter.java:217) [spring-integration-amqp-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:287) ~[spring-retry-1.2.2.RELEASE.jar:na]
	at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:180) ~[spring-retry-1.2.2.RELEASE.jar:na]
	at org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter$Listener.onMessage(AmqpInboundChannelAdapter.java:214) [spring-integration-amqp-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1414) ~[spring-rabbit-2.0.3.RELEASE.jar:2.0.3.RELEASE]
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.actualInvokeListener(AbstractMessageListenerContainer.java:1337) ~[spring-rabbit-2.0.3.RELEASE.jar:2.0.3.RELEASE]
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:1324) ~[spring-rabbit-2.0.3.RELEASE.jar:2.0.3.RELEASE]
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:1303) ~[spring-rabbit-2.0.3.RELEASE.jar:2.0.3.RELEASE]
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:785) ~[spring-rabbit-2.0.3.RELEASE.jar:2.0.3.RELEASE]
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:769) ~[spring-rabbit-2.0.3.RELEASE.jar:2.0.3.RELEASE]
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$700(SimpleMessageListenerContainer.java:77) ~[spring-rabbit-2.0.3.RELEASE.jar:2.0.3.RELEASE]
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1010) ~[spring-rabbit-2.0.3.RELEASE.jar:2.0.3.RELEASE]
	at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_161]

I’m using Finchley.M9 and this is my configuration

spring:
  application:
    name: turbine-amqp
eureka:
  client:
    service-url:
      defaultZone: http://localhost:10010/eureka/

and my pom

spring-cloud-starter-netflix-turbine-stream
spring-cloud-starter-stream-rabbit

I want to know how to make it work? Thank you!