Error on CommandBinding in Infragistics XamRichTextEditor

Question

My Infragistics-Version is 15.1.20151.2188.

I'm trying to reproduce the sample from Infragistics Sample Browser which binds Infra-commands to buttons in a custom toolbar and linking them to a XamRichTextEditor like this:

<ig:XamRichTextEditor AllowDocumentViewSplitting="True" DockPanel.Dock="Bottom" />
<ToolBar DockPanel.Dock="Top">
    <Button Content="F" Width="32" Height="32" Margin="0,0,5,0">
        <ig:Commanding.Command>
            <igPrim:RichTextEditorCommandSource EventName="Click" CommandType="ToggleBoldFormatting" />
        </ig:Commanding.Command>
    </Button>
</ToolBar>

Here are the namespace definitions:

xmlns:ig="http://schemas.infragistics.com/xaml"  
xmlns:igPrim="http://schemas.infragistics.com/xaml/primitives"

During design time I get the following error (crash at runtime is happening too) in Visual Studio:

The specified value cannot be assinged. The following type was expected: 'CommandSource'

Here the screenshot:

I checked RichTextEditorCommandSource using Object Browser:

As you can see, RichTextEditorCommandSource inherits from CommandSource.

I guess I'm missing a reference or something like this. Any suggestions?

Answer 1

Solution was that for some reason I had to re-reference Infragistics.WPF4.v15.1.dll. I have only one version installed on my system and yes I restartet the VS and made a clean rebuild before I placed the question. Strange.