vba代码出错，显示用户定义类型未定义 该如何修改语句？？

Private Sub ListBox1_DblClick(ByVal Cancel As MSForms.ReturnBoolean)
ActiveCell.Value = ListBox1.Value
Me.ListBoxl.Clear
Me.TextBoxl = ""
Me.ListBoxl.Visible = False
Me.TextBoxl.Visible = False
End Sub

改成
Private Sub ListBox1_DblClick(ByVal Cancel As MSForms.ReturnBoolean)
ActiveCell.Value = ListBox1.Value
Me.ListBox1.Clear
Me.TextBox1= ""
Me.ListBox1.Visible = False
Me.TextBox1.Visible = False
End Sub

这儿出错：
Me.ListBoxl.Clear
Me.TextBoxl = ""
Me.ListBoxl.Visible = False
Me.TextBoxl.Visible = False
你把textbox1输成textboxl
本来是数字1，你输入成字母l，肯定出错