我正面临一个与Kafka有关的问题。
我现在的服务( Producer )将信息发送到Kafka主题( events ). 服务正在使用 kafka_2.12 v1.0.0 ，用java编写。
我正在尝试将它与 spark-streaming 作为一个 Consumer 服务（这里使用kafka_2.11 v0.10.0，用scala编写）
消息已从成功发送 Producer Kafka主题。但是，我总是收到下面的错误堆栈：

Exception in thread "main" org.apache.kafka.common.errors.InconsistentGroupProtocolException: The group member's supported protocols are incompatible with those of existing members.
    at ... run in separate thread using org.apache.spark.util.ThreadUtils ... ()
    at org.apache.spark.streaming.StreamingContext.liftedTree1$1(StreamingContext.scala:577)
    at org.apache.spark.streaming.StreamingContext.start(StreamingContext.scala:571)    at com.jj.streaming.ItemApp$.delayedEndpoint$com$jj$streaming$ItemApp$1(ItemApp.scala:72)
    at com.jj.streaming.ItemApp$delayedInit$body.apply(ItemApp.scala:12)
    at scala.Function0$class.apply$mcV$sp(Function0.scala:34)
    at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)     at scala.App$$anonfun$main$1.apply(App.scala:76)
    at scala.App$$anonfun$main$1.apply(App.scala:76)
    at scala.collection.immutable.List.foreach(List.scala:381)
    at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:35)   at scala.App$class.main(App.scala:76)
    at com.jj.streaming.ItemApp$.main(ItemApp.scala:12)
    at com.jj.streaming.ItemApp.main(ItemApp.scala)

我不知道根本原因。我怎样才能解决这个问题？