我正在尝试运行以下代码，编译器当前被卡住。。。我怀疑这与标题中提到的块有关，因为当我评论一个块时，它正常工作，但没有预期的结果

def convertSize(size: String): Double = {
    if (size.contains('M')) {
      size.dropRight(1).toDouble
    }
    else {
      size.toDouble / 1000000
    }
  }
  val sizeUDF = udf(convertSize _);
  spark.read
    .option("header", "true")
    .option("mode", "DROPMALFORMED")
    //.schema(Gps.schema)
    .csv(Gps.path)
    .groupBy(col("App"),
      col("Rating"),
      col("Reviews"),
      col("Size")
      col("Installs"),
      col("Type"),
      col("Price"), //todo convert
      col("Content Rating"),
      col("Genres"), //todo split
      col("Last Updated"), //todo convert
      col("Current Ver").alias("Current_Version"),
      col("Android Ver").alias("Minimum_Android_Version") 
    )
    .agg(collect_set("Category").alias("Categories"))
    .withColumn("Size", sizeUDF($"Size"))
    .show()