运行anko时已设置视图

Question

我试图在运行时使用Anko进行布局。它说错误，但我不知道错误是什么意思。我要做的只是像Anko的工作方式一样放置 UI ，但我不知道会发生什么。

这是我的代码：

---

class LastActivity : Fragment(), MainView {

    private var teams: MutableList<Team> = mutableListOf()
private lateinit var presenter: LastActivity.MainPresenter
private lateinit var adapter: MainAdapter
private lateinit var listTeam: RecyclerView
private lateinit var progressBar: ProgressBar
private lateinit var swipeRefresh: SwipeRefreshLayout
private lateinit var leagueName: String

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {

    return UI {
        linearLayout {
            lparams(width = matchParent, height = wrapContent)
            orientation = LinearLayout.VERTICAL
            topPadding = dip(16)
            leftPadding = dip(16)
            rightPadding = dip(16)

            swipeRefresh = swipeRefreshLayout {
                setColorSchemeResources(colorAccent,
                        android.R.color.holo_green_light,
                        android.R.color.holo_orange_light,
                        android.R.color.holo_red_light)

                relativeLayout {
                    lparams(width = matchParent, height = wrapContent)

                    listTeam = recyclerView {
                        lparams(width = matchParent, height = wrapContent)
                        layoutManager = LinearLayoutManager(ctx)
                    }

                    progressBar = progressBar {
                    }.lparams {
                        centerHorizontally()
                    }
                }
            }
        }

    }.view()

}
}

这是错误信息

  

java.lang.IllegalStateException: View is already set: org.jetbrains.anko._LinearLayout{af3f3df V.E...... ......I. 0,0-0,0}

有人知道实际发生了什么，我该如何解决？

请帮助