问如何设置Intellij 14 Scala Worksheet以运行Spark

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name := "LearnSpark"
version := "1.0"
scalaVersion := "2.11.7"
// for working with Spark API
libraryDependencies += "org.apache.spark" %% "spark-core" % "1.4.0"

import org.apache.spark.{SparkContext, SparkConf}
val conf = new SparkConf().setMaster("local").setAppName("spark-play")
val sc = new SparkContext(conf)

15/08/24 14:01:59 ERROR SparkContext: Error initializing SparkContext.
java.lang.ClassNotFoundException: rg.apache.spark.rpc.akka.AkkaRpcEnvFactory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)

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

// stops verbose logs
import org.apache.log4j.{Level, Logger}

object TestMain {

  Logger.getLogger("org").setLevel(Level.OFF)

  def main(args: Array[String]): Unit = {

    //Create SparkContext
    val conf = new SparkConf()
      .setMaster("local[2]")
      .setAppName("mySparkApp")
      .set("spark.executor.memory", "1g")
      .set("spark.rdd.compress", "true")
      .set("spark.storage.memoryFraction", "1")

    val sc = new SparkContext(conf)

    val data = sc.parallelize(1 to 10000000).collect().filter(_ < 1000)
    data.foreach(println)
  }
}