使用Spark和IntelliJ时出现NoSuchMethodError [英] NoSuchMethodError when using Spark and IntelliJ

问题描述

我是Scala和Spark的新手.使事情与IntelliJ一起工作有多么艰辛，我感到沮丧.目前，我无法运行下面的代码.我敢肯定这很简单，但是我无法使其正常工作.

I'm new to Scala and Spark. I've been frustrated by how hard it has been to get things to work with IntelliJ. Currently, I can't get run the code below. I'm sure it's something simple, but I can't get it to work.

我正在尝试运行:

import org.apache.spark.{SparkConf, SparkContext}

object TestScala {
  def main(args: Array[String]): Unit = {
    val conf = new SparkConf()
    conf.setAppName("Datasets Test")
    conf.setMaster("local[2]")
    val sc = new SparkContext(conf)
    println(sc)
  }
}

我得到的错误是:

Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps;
at org.apache.spark.util.Utils$.getCallSite(Utils.scala:1413)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:77)
at TestScala$.main(TestScala.scala:13)
at TestScala.main(TestScala.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)

我的build.sbt文件:

My build.sbt file:

name := "sparkBook"

version := "1.0"

scalaVersion := "2.12.1"

推荐答案

将scalaVersion更改为2.11.8并将Spark依赖项添加到build.sbt:

Change your scalaVersion to 2.11.8 and add the Spark dependency to your build.sbt:

libraryDependencies += "org.apache.spark" % "spark-core_2.11" % "2.0.2"

这篇关于使用Spark和IntelliJ时出现NoSuchMethodError的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！