下载失败：在yarn上运行时org.apache.cassandra错误

Question

使用spark-submit命令运行应用程序时出现以下错误：

Exception in thread "main" java.lang.RuntimeException: [download failed: org.apache.cassandra#cassandra-clientutil;3.0.2!cassandra-clientutil.jar]
at org.apache.spark.deploy.SparkSubmitUtils$.resolveMavenCoordinates(SparkSubmit.scala:1202)
at org.apache.spark.deploy.SparkSubmit$.prepareSubmitEnvironment(SparkSubmit.scala:304)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:153)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:119)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

关于我在做什么错的任何建议？我是新手，谢谢。