我有一个使用spark流的项目，我正在使用“spark submit”运行它，但遇到了以下错误：

15/01/14 10:34:18 ERROR ReceiverTracker: Deregistered receiver for stream 0: Error starting receiver 0 - java.lang.AbstractMethodError
    at org.apache.spark.Logging$class.log(Logging.scala:52)
    at org.apache.spark.streaming.kafka.KafkaReceiver.log(KafkaInputDStream.scala:66)
    at org.apache.spark.Logging$class.logInfo(Logging.scala:59)
    at org.apache.spark.streaming.kafka.KafkaReceiver.logInfo(KafkaInputDStream.scala:66)
    at org.apache.spark.streaming.kafka.KafkaReceiver.onStart(KafkaInputDStream.scala:86)
    at org.apache.spark.streaming.receiver.ReceiverSupervisor.startReceiver(ReceiverSupervisor.scala:121)
    at org.apache.spark.streaming.receiver.ReceiverSupervisor.start(ReceiverSupervisor.scala:106)
    at org.apache.spark.streaming.scheduler.ReceiverTracker$ReceiverLauncher$$anonfun$9.apply(ReceiverTracker.scala:264)
    at org.apache.spark.streaming.scheduler.ReceiverTracker$ReceiverLauncher$$anonfun$9.apply(ReceiverTracker.scala:257)
    at org.apache.spark.SparkContext$$anonfun$runJob$4.apply(SparkContext.scala:1121)
    at org.apache.spark.SparkContext$$anonfun$runJob$4.apply(SparkContext.scala:1121)
    at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:62)
    at org.apache.spark.scheduler.Task.run(Task.scala:54)
    at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

这是产生错误的代码，在ssc.start（）之前一切正常

val Array(zkQuorum, group, topics, numThreads) = args
    val sparkConf = new SparkConf().setAppName("Jumbly_StreamingConsumer")
    val ssc = new StreamingContext(sparkConf, Seconds(2))
    ssc.checkpoint("checkpoint")
    .
    .
    .
    ssc.start()
    ssc.awaitTermination()

我已经使用“spark submit”运行了sparkpi示例，它运行得很好，所以我似乎无法找出导致我的应用程序出现问题的原因，任何帮助都将不胜感激。