Por que el contenedor no se visualiza

  • Hi,

    I have a problem with a container of list,, this is my code:

    Experience NewsObject{
        String title as Label
        String author as Label
        String image as Image
    Entry Experience ListNews{
        Decision button action("rules.getNews") label("Get News")
        Array<NewsObject> news as List
        Decision getMoreNews action("rules.getNews") label("Get More News")
    RuleContext rules{
        Rule getNews{
            ListNews ln = broker.ui.getDataSource()
            ln.news = service.latestNews.call()
        Rule openNews{
            ListNews ln = broker.ui.getDataSource()
            Integer index = ln.news.selected().get(0)

    I attacht the view:

    0_1532098257965_Screen Shot 2018-07-20 at 11.50.40.png