为什么Spark失败了?NoSuchMethodError:io.netty.channel.DefaultFileRegion。< init >(Ljava / io /文件;JJ)V”?

I use Spark Streaming 2.10, Kafka_2.11-0.10.0.0, and Spark-streaming-0-10-2.11-2.10.I use Spark Streaming 2.10, Kafka_2.11-0.10.0.0