java.io.IOException: unexpected exception type

WARN TaskSetManager:66 - Lost task 0.0 in stage 0.0 (TID 0, 172.17.190.98, executor 1): java.io.IOException: unexpected exception type
at java.io.ObjectStreamClass.throwMiscException(ObjectStreamClass.java:1736)
at java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1266)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2078)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431)
at scala.collection.immutable.List$SerializationProxy.readObject(List.scala:490)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

集群上的Scala版本号和打包时工具上的Scala版本号不一致，修改idea上的Scala版本号和集群保持一致。
修改步骤：
1.从File中选择Project Structure
2.选中GlobalLibraries,删除原有Scala，添加需要的Scala版本号，然后选中download
3.重新打包即可