B4J Question Multiple Anchor Panes

#Region  Project Attributes
    #MainFormWidth: 1400
    #MainFormHeight: 900
#End Region

Sub Process_Globals
    Private fx As JFX
    Private MainForm As Form
    Dim Content As AnchorPane
    Dim backbmp, backbmp1 As Image
    Dim ImageView1 As ImageView
    Dim Label1 As Label
    Dim paner As AnchorPane
    Dim accord As Node
    Dim tiledone As Node
    Dim listview1 As ListView
End Sub

Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    MainForm.RootPane.LoadLayout("main_app") 'Load the layout file.
   backbmp.Initialize(File.DirAssets,"hot1.jpg")
   backbmp1.Initialize(File.DirAssets,"ok.png")
MainForm.Show

Listxx

End Sub

Sub Content_MouseClicked (EventData As MouseEvent)
 
End Sub
Sub Listxx
For i = 0 To 100
        Dim p As AnchorPane
        p.Initialize("")
                p.LoadLayout("ListItem")
           
     
        ImageView1.SetImage(backbmp)


    >>>>>> ERROR HERE <<<<<     
      listview1.Items.Add(p)
      
Next


End Sub