I have a simple XAML page that load fine when it is loaded as part of any application within Visual Studio. However, when I deploy this application using ClickOnce, I get the following exception:

Type : System.Windows.Markup.XamlParseException, PresentationFramework, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 Message : Unable to cast object of type 'System.Windows.Controls.Grid' to type 'EMS.Controls.Dictionary.StatusBarControl'. Error at object 'System.Windows.Controls.Grid' in markup file 'EMS.Controls.Dictionary;component/views/statusbarcontrol.xaml'. Source : PresentationFramework Help link : LineNumber : 0 LinePosition : 0 KeyContext : UidContext : NameContext : BaseUri : pack://application:,,,/EMS.Controls.Dictionary;component/views/statusbarcontrol.xaml Data : System.Collections.ListDictionaryInternal TargetSite : Void ThrowException(System.String, System.Exception, Int32, Int32, System.Uri, System.Windows.Markup.XamlObjectIds, System.Windows.Markup.XamlObjectIds, System.Type) Stack Trace : at System.Windows.Markup.XamlParseException.ThrowException(String message, Exception innerException, Int32 lineNumber, Int32 linePosition, Uri baseUri, XamlObjectIds currentXamlObjectIds, XamlObjectIds contextXamlObjectIds, Type objectType) at System.Windows.Markup.XamlParseException.ThrowException(ParserContext parserContext, Int32 lineNumber, Int32 linePosition, String message, Exception innerException) at System.Windows.Markup.BamlRecordReader.ReadRecord(BamlRecord bamlRecord) at System.Windows.Markup.BamlRecordReader.Read(Boolean singleRecord) at System.Windows.Markup.TreeBuilderBamlTranslator.ParseFragment() at System.Windows.Markup.TreeBuilder.Parse() at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream) at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator) at EMS.Controls.Dictionary.StatusBarControl.InitializeComponent() at EMS.Controls.Dictionary.StatusBarControl..ctor(IDataView content) at OCC600.ReportManager.ReportPresenter.ShowQueryView(Object arg, Boolean bringForward, Type selectedDataType) at OCC600.ReportManager.ReportPresenter..ctor(IUnityContainer container) at OCC600.ReportManager.Module.Initialize() at Microsoft.Practices.Composite.Modularity.ModuleLoader.Initialize(ModuleInfo[] moduleInfos)

    Inner Exception
    ---------------
    Type : System.InvalidCastException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
    Message : Unable to cast object of type 'System.Windows.Controls.Grid' to type 'EMS.Controls.Dictionary.StatusBarControl'.
    Source : EMS.Controls.Dictionary
    Help link : 
    Data : System.Collections.ListDictionaryInternal
    TargetSite : Void System.Windows.Markup.IComponentConnector.Connect(Int32, System.Object)
    Stack Trace :    at EMS.Controls.Dictionary.StatusBarControl.System.Windows.Markup.IComponentConnector.Connect(Int32 connectionId, Object target)
       at System.Windows.Markup.BamlRecordReader.ReadConnectionId(BamlConnectionIdRecord bamlConnectionIdRecord)
       at System.Windows.Markup.BamlRecordReader.ReadRecord(BamlRecord bamlRecord)

The XAML page is given below:

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:cdic="clr-namespace:EMS.Controls.Dictionary.Primitives" xmlns:dicutil="clr-namespace:OCC600.Infrastructure.Dictionary.Utility;assembly=EMS.Infrastructure.Dictionary" Loaded="ResultSetControl_Loaded">

        <StatusBarItem Margin="10,0, 10, 0">                
            <TextBlock Text="{Binding CountText}" Padding="5,0"/>                
        </StatusBarItem>                       

        <StatusBarItem Margin="10,0">
            <TextBlock Text="{Binding MemoryUsageText}" Padding="5,0"/>
        </StatusBarItem>

        <StatusBarItem Margin="10,0" MaxWidth="400">
            <TextBlock  Text="{Binding StatusReport.Summary}" Padding="5,0" />
        </StatusBarItem>

        <ProgressBar Margin="20,0" Name="progBar" Width="150" Height="13" Visibility="Collapsed" >                
            <ProgressBar.ContextMenu>                   
                <ContextMenu Name="ctxMenu" ItemsSource="{Binding ActiveWorkItems}" 
                             Visibility="{Binding Path=ActiveWorkItems.HasItems, Converter={StaticResource BooToVisConv}}">                        
                    <ContextMenu.ItemContainerStyle>
                        <Style TargetType="{x:Type MenuItem}">                                
                            <Setter Property="Template">
                                <Setter.Value>
                                    <ControlTemplate TargetType="{x:Type MenuItem}">
                                        <StackPanel Height="20" Margin="10,0" Orientation="Horizontal" HorizontalAlignment="Left">
                                            <TextBlock Text="{Binding Path=Name, Mode=OneTime}" 
                                                       Foreground="Black" VerticalAlignment="Center" HorizontalAlignment="Left" />
                                            <ToggleButton  Style="{StaticResource vistaGoldenToggleButtonStyle}"
                                                     Padding="5,0" Content="Cancel" IsChecked="{Binding Cancel}"                                                         
                                                     Margin="10,0,0,0" >                                                    
                                            </ToggleButton>
                                        </StackPanel>                                                                                      
                                    </ControlTemplate>
                                </Setter.Value>
                            </Setter>
                        </Style>
                    </ContextMenu.ItemContainerStyle>                                                
                </ContextMenu>
            </ProgressBar.ContextMenu>
        </ProgressBar>

        <StatusBarItem Margin="10,0" MaxWidth="400" HorizontalAlignment="Right">
            <StackPanel Orientation="Horizontal">
                <TextBlock  Text="Last Update:" Padding="5,0" />
                <TextBlock  Text="{Binding TimeStamp}" Padding="5,0" />                    
            </StackPanel>                
        </StatusBarItem>


        <!-- TODO:  Put checkmark if all is well, or error if connection failed-->
        <StatusBarItem Style="{DynamicResource {ComponentResourceKey 
            TypeInTargetAssembly=dc:Ribbon, ResourceId=StatusBarItemAlt}}" 
                       DockPanel.Dock="Right" Padding="6,0,32,0" >      

                <cdic:SplitButton Margin="5,0" Padding="5,2"                             
                        Style="{DynamicResource {ComponentResourceKey 
                    TypeInTargetAssembly={x:Type cdic:SplitButtonResources}, ResourceId=vistaSplitButtonStyle}}" 
                                   Mode="Split">
                    <cdic:SplitButton.ContextMenu>
                        <ContextMenu >
                            <MenuItem Header="Refresh Now" Command="{Binding ToggleConnectivityCmd}"
                                      CommandParameter="false"/>
                            <MenuItem IsCheckable="True" 
                                      IsChecked="{Binding ConnectState, Converter={StaticResource isFailedConverter}}"
                                      CommandParameter="{Binding RelativeSource={x:Static RelativeSource.Self},
                                Path=IsChecked}"
                                      Header="Work Offline" Command="{Binding ToggleConnectivityCmd}"/>
                    </ContextMenu>                            
                    </cdic:SplitButton.ContextMenu>
                <cdic:SplitButton.Content>
                    <StackPanel Orientation="Horizontal">
                        <Image                             
                            x:Name="img"     
                            Source="{Binding ConnectState, Converter={StaticResource imageConverter}}"
                            Width="16" Height="16" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                        <TextBlock Text="{Binding ConnectState}" Padding="3,0,0,0"/>                            
                    </StackPanel>                        
                </cdic:SplitButton.Content>
            </cdic:SplitButton>                                        
        </StatusBarItem>            

    </StatusBar>
</Grid>    

The error just seems to have come out of no where. Any ideas?

TIA.