could not find implicit value for evidence parameter of type entity.request.DateFilter.JF[org.joda.time.DateTime]

[adityaksflipkart]

case class DateFilter(min: DateTime, max: DateTime)
object DateFilter extends DefaultJsonProtocol {
implicit val dateFilterFormat = jsonFormat2(DateFilter.apply)
}
case class FilterTaskRequest(
createdOn: Option[DateFilter]=None,
updatedOn: Option[DateFilter]=None,
sortField: Option[String]=None)

object FilterTaskRequest extends DefaultJsonProtocol {
implicit val filterTaskRequestFormat = jsonFormat3(FilterTaskRequest.apply)
}