scala提交java.lang.ClassNotFoundException

Question

spark 2.7 scala 2.12.7，当我使用spark-submit提交一个简单的项目--WordCount时，我确保package和className都可以，但是仍然有错误  java.lang.ClassNotFoundException
作为我的代码：

1 ../ bin / spark-submit --master spark：//localhost.localdomain：7077 --class sparkTes.WordCount.scala /java/spark/scala.jar

2。enter image description here 3.火花代码

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

    val conf = new SparkConf().setAppName("wordcount");
    val sc = new SparkContext(conf)
    val input = sc.textFile("/java/text/scala.md", 2).cache()
    val lines = input.flatMap(line=>line.split(" "))
    val count = lines.map(word => (word,1)).reduceByKey{case (x,y)=>x+y}
    val output = count.saveAsTextFile("/java/text/WordCount")
  }