No typeTag available Error in scala spark udf

问题

I am getting no typetag found for Seq[String] while compiling the following code

val post_event_list_evar_lookup: (String => Seq[String]) = (pel: String) => {
  pel.split(",").filterNot(_.contains("=")).map(ev => {
    evarMapBroadCast.value.getOrElse(ev.toInt, "NotAnEvar").toLowerCase
  }).filterNot(_.contains("notanevar"))
}
val sqlFunc_post_event_list_evar_lookup = udf(post_event_list_evar_lookup)

Error message I am getting is I am using scala 2.10.4. Same code compiles with out any error in scala 2.11.4. Can someone please help me to resolve this issue?

来源：https://stackoverflow.com/questions/39520033/no-typetag-available-error-in-scala-spark-udf