Issues related to code execution

[X-j-s]

I would like to ask why my code reported an error：Exception in thread "main" java.lang.AbstractMethodError

object FSTest01 {
  def main(args: Array[String]): Unit = {
    val conf = new SparkConf().setAppName("FS test")
    val sc = new SparkContext(conf)
    val raw = MLUtils.loadLibSVMFile(sc, "a2a.libsvm")
    val data: RDD[LabeledPoint] = raw.map({ case LabeledPoint(label, values) => LabeledPoint(label, Vectors.dense(values.toArray)) })

    val criterion: InfoThCriterionFactory = new InfoThCriterionFactory("mrmr")
    val nToSelect = 5
    val nPartitions = 10

    val featureSelector = new InfoThSelector(criterion, nToSelect, nPartitions).fit(data)

    val redData = data.map { lp =>
      LabeledPoint(lp.label, featureSelector.transform(lp.features))
    }

    println(redData.first().toString())
  }
}

Error reported on the fit line of the code

[X-j-s]

I have solved it because of the Spark version issue. I am using version 2.4.0 and only need to download the source code to change the dependency