我试图运行Spark作业使用Yarn，但得到以下错误

java.lang.NoSuchMethodError: com.google.common.util.concurrent.Futures.withFallback(Lcom/google/common/util/concurrent/ListenableFuture;Lcom/google/common/util/concurrent/FutureFallback;Ljava/util/concurrent/Executor;)Lcom/google/common/util/concurrent/ListenableFuture;
at com.datastax.driver.core.Connection.initAsync(Connection.java:176)
at com.datastax.driver.core.Connection$Factory.open(Connection.java:721)
at com.datastax.driver.core.ControlConnection.tryConnect(ControlConnection.java:248)
at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:194)
at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:82)
at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1307)
at com.datastax.driver.core.Cluster.init(Cluster.java:159)
at com.datastax.driver.core.Cluster.connect(Cluster.java:249)
at com.figmd.processor.ProblemDataloader$ParseJson.call(ProblemDataloader.java:46)
at com.figmd.processor.ProblemDataloader$ParseJson.call(ProblemDataloader.java:34)
at org.apache.spark.api.java.JavaRDDLike$$anonfun$fn$4$1.apply(JavaRDDLike.scala:140)
at org.apache.spark.api.java.JavaRDDLike$$anonfun$fn$4$1.apply(JavaRDDLike.scala:140)
at org.apache.spark.rdd.RDD$$anonfun$14.apply(RDD.scala:618)
at org.apache.spark.rdd.RDD$$anonfun$14.apply(RDD.scala:618)
at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:35)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:280)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:247)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:61)
at org.apache.spark.scheduler.Task.run(Task.scala:56)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:200)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

集群详细信息：spark 1.2.1，hadoop2.7.1我使用spark.driver.extraclasspath提供了类路径。hadoop用户也可以访问该类路径，但我认为yarn没有在该类路径上获得jar。我无法找到它的根本原因。任何帮助将不胜感激。
谢谢。