class java.lang.RuntimeException/error reading Scala signature of package.class: Scala signature package has wrong version

在用scala连接spark时，出现错误：

scalac: error while loading package, class file 'C:\Users\asus\.ivy2\cache\org.scala-lang\scala-library\jars\scala-library-2.13.7.jar(scala/reflect/package.class)' is broken
(class java.lang.RuntimeException/error reading Scala signature of package.class: Scala signature package has wrong version
expected: 5.0
found: 5.2 in package.class)

 是因为版本冲突的问题，编译器添加scala的sdk版本与pom文件的版本一致

打开File>>Project Structure>>Global Librarier 添加和pom文件一致的版本即可

 运行成功

 最后，，用的spark版本是3.0