如果列表中存在，则从列中删除单词

我有一个带有'text'列的数据框，其中有许多行包含英文句子。

文本

It is evening
Good morning
Hello everyone
What is your name
I'll see you tomorrow
我有一个List类型的变量，它有一些单词，如

val removeList = List("Hello", "evening", "because", "is")
我想删除removeList中存在的列文本中的所有单词。

所以我的输出应该是

It
Good morning
everyone
What your name
I'll see you tomorrow
如何使用Spark Scala执行此操作。

我写了一个像这样的代码：

val stopWordsList = List("Hello", "evening", "because", "is");
val df3 = sqlContext.sql("SELECT text FROM table");
val df4 = df3.map(x => cleanText(x.mkString, stopWordsList));

def cleanText(x:String, stopWordsList:List[String]):Any = {
for(str <- stopWordsList) {

if(x.contains(str)) {
  x.replaceAll(str, "")
}

}
}
但我收到了错误

Error:(44, 12) Unable to find encoder for type stored in a Dataset. Primitive types (Int, String, etc) and Product types (case classes) are supported by importing spark.implicits._ Support for serializing other types will be added in future releases.
val df4 = df3.map(x => cleanText(x.mkString, stopWordsList));

Error:(44, 12) not enough arguments for method map: (implicit evidence$6: org.apache.spark.sql.Encoder[String])org.apache.spark.sql.Dataset[String].
未指定的值参数证据$ 6。val df4 = df3.map（x => cleanText（x.mkString，stopWordsList））;