Vista - Entering break mode failed for the following reason: Source File XXX does not belong to the project being debugged

Hi,

We get this error when we start our application and it seems like it is the
resource dictionary tag causing it and the application refuses to start. If
we remove the tag the our application starts. The error turned up when we
moved the project form one computer to another. We have
tried ->Clean->Rebuild solution but with no result. We have tried to create
a brand new project but the error still accours.

Here is a snippet how our application is constructed and and some code.

In the file app.xaml we have the following stuff.

* In the project solution we have folder with the name 'Shells' containing
the 3 xaml files.

* File : app.xaml

<Application x:Class="MyGUI.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="Window1.xaml"
>
<Application.Resources>

<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>

<ResourceDictionary Source="Folder\file1.xaml" />
<ResourceDictionary Source="Folder\file2.xaml" />
<ResourceDictionary Source="Folder\file3.xaml" />

</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>

<!-- **** Button template 1 **** -->
<ControlTemplate x:Key="ButtonControlTemplate1" TargetType="{x:Type
Button}">

...........

</Application.Resources>
</Application>


All this stuff worked with out any problem in the previus versions of WinFX.
We now have updated all components to the latest versions.

/ Ken