ScalaFX表接受通用值

Question

我遇到的问题是当我尝试将本教程http://www.scalafx.org/docs/faq_TableView_with_Custom_cell/中找到的代码转换为接受泛型时

到目前为止，这是我的代码

stage = new PrimaryStage {
title = "Warehouse Order Tracking System"
scene = new Scene {
  content = new TableView[T](ordersList) {
    val list = generateTableColums[CustomerOrder]()
    columns ++= list

}


def generateTableColums[T](): List[TableColumn[T,_]] = {
 List(new TableColumn[T, String] {
        text = "First Name"
        cellValueFactory = { _.value.asInstanceOf[Person].firstName }
        prefWidth = 250
      },
      new TableColumn[T, String]() {
        text = "Last Name"
        cellValueFactory = { _.value.asInstanceOf[Person].lastName}
        prefWidth = 250
      }

    )
}

我遇到的错误是在第5行。

type mismatch; found :List[scalafx.scene.control.TableColumn[com.qa.Entities.CustomerOrder, _]] 
required:scala.collection.TraversableOnce[javafx.scene.control.TableColumn[T, _]]

非常感谢任何帮助