运行Flink程序报错：

java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)[Ljava/lang/Object;
	at com.ruozedata.bigdata.SocketWCApp$.$anonfun$main$1(SocketWCApp.scala:33)
	at com.ruozedata.bigdata.SocketWCApp$.$anonfun$main$1$adapted(SocketWCApp.scala:33)
	at org.apache.flink.streaming.api.scala.DataStream$$anon$6.flatMap(DataStream.scala:675)
	at org.apache.flink.streaming.api.operators.StreamFlatMap.processElement(StreamFlatMap.java:50)
	at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:173)
	at org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.processElement(StreamTaskNetworkInput.java:151)
	at org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.emitNext(StreamTaskNetworkInput.java:128)
	at org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:69)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:311)
	at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:187)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:487)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:470)
	at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:707)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:532)
	at java.lang.Thread.run(Thread.java:745)

错误分析：scala.Predef$.refArrayOps([Ljava/lang/Obje 看到这里就可以大概知道是scala的问题，那么scala有什么问题呢？
检查我们的代码中的scala 用的版本是2.12 但是提交到服务器上面去的时候，服务器上面的flink的基于scala的版本是2.11，所以报这个错误，将代码中的scala版本改成2.11即可成功运行Flink代码