Java 带火花的NoClassDefFoundError

我正在尝试使用IntelliJ运行一个非常简单的spark上下文实例。但是，我遇到了一个问题，我收到了一个

NoClassDefFoundError

：

Exception in thread "main" java.lang.NoClassDefFoundError: scala/Product$class
    at org.apache.spark.SparkConf$DeprecatedConfig.<init>(SparkConf.scala:609)
    at org.apache.spark.SparkConf$.<init>(SparkConf.scala:473)
    at org.apache.spark.SparkConf$.<clinit>(SparkConf.scala)
    at org.apache.spark.SparkConf.set(SparkConf.scala:71)
    at org.apache.spark.SparkConf.setAppName(SparkConf.scala:86)
    at test$.main(test.scala:8)
    at test.main(test.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: java.lang.ClassNotFoundException: scala.Product$class
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 12 more
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
17/01/27 00:24:37 INFO Utils: Shutdown hook called

---

关于Scala和Spark版本的不兼容性，有什么我不知道的吗？

明确添加Scala库和xml依赖项

    <dependency>
        <groupId>org.scala-lang</groupId>
        <artifactId>scala-library</artifactId>
        <version>2.11.4</version>
    </dependency>
    <dependency>
        <groupId>org.scala-lang</groupId>
        <artifactId>scala-xml</artifactId>
        <version>2.11.0-M4</version>
    </dependency>

org.scala-lang
scala图书馆
2.11.4
org.scala-lang
scala xml
2.11.0-M4

我应该将其添加到哪个xml文件中？我是一个maven人，如果您使用的是maven，请将其添加到pom.xml中。否则，请确保在您使用的构建系统的类路径中有scala-library.jar和scala-xml.jar。

    <dependency>
        <groupId>org.scala-lang</groupId>
        <artifactId>scala-library</artifactId>
        <version>2.11.4</version>
    </dependency>
    <dependency>
        <groupId>org.scala-lang</groupId>
        <artifactId>scala-xml</artifactId>
        <version>2.11.0-M4</version>
    </dependency>