Hi,

That also seems ok to me, last think that comes to my mind is if eventually your project is configured to build with Silverlight 3.

Could you send us a sample project which we could use for reproducing the issue and debuging?

Thanks,

I have the "InfragisticsSL4.Controls.Menus.XamMenu.v10.3" referenced on my project actually.

And my full xmlns definition follow:

<UserControl x:Class="Namespace.Namespace.DispatchView"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:vsm="clr-namespace:System.Windows;assembly=System.Windows"
    mc:Ignorable="d" xmlns:ddm="clr-namespace:Infragistics.DragDrop;assembly=InfragisticsSL4.DragDrop.v10.3"
    d:DesignHeight="418" d:DesignWidth="1405"
    xmlns:ig="http://schemas.infragistics.com/xaml"
    xmlns:igPrim="http://schemas.infragistics.com/xaml/primitives"
    xmlns:layoutToolkit="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Layout.Toolkit">

HI, I got a similiar error message because I was missing a Reference.

 Make sure you have the Infragistics.controls.Menu.XamMenu Reference.

Sincerely,
 Matt
Developer Support Engineer

Hi,

I am not able to reproduce the issue in the versio you are using either. I am guessing it is something related to the rest of your code, could you copy paste your xmlns definitions?

If you are able to provide a sample project where I can reproduce the issue it would be best (and attach it to the current thread from the Options tab).

Thanks,

It's InfragisticsSL4.v10.3

Version: 10.3.20103.1006

No Service Release applied, but not sure where to check it.