XAML Can't find namespace. sometimes

Question

Might be a Visual Studio error but it its absolutely infuriating and I can't find the solution or even why its happening.

In my application I have a list of XAML files in the namespace Static Content for dockable panels.

The program runs fine there are no errors anywhere in the program other than a few arbitrary warnings.

some XAML

<Window x:Class="Shell" 
    xmlns:ad="clr-namespace:AvalonDock;assembly=AvalonDock"  
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:sc="clr-namespace:StaticContent"
    xmlns:ve="clr-namespace:View_Edit"
    Title="View" Width="1024" Height="800" Icon="/component/Images/View.png" 
    Loaded="OnLoaded" IsVisibleChanged="isVisibleChanged" Closing="OnClosing" Background="#E9ECFB"
    WindowStyle="None">

<Grid x:Name="DockingRegion" Margin="0,50,0,0">
        <ad:DockingManager x:Name="DockManager">
            <ad:ResizingPanel>
                <ad:DocumentPane Margin="0,0,10,0">
                    <sc:StartPage Title="Home Page" VerticalContentAlignment="Stretch" 
                        onProjectOpenFail="StartPage_onProjectOpenFail" 
                        onProjectOpenSuccess="StartPage_onProjectOpenSuccess"
                        onProjectCreateSuccess="StartPage_onProjectCreateSuccess"
                        onProjectCreateFail="StartPage_onProjectCreateFail"/>
                </ad:DocumentPane>
                <ad:DockablePane ad:ResizingPanel.ResizeWidth="300" x:Name="ExplorerPane" FontSize="14" FontWeight="Bold">
                    <sc:AboutTab x:Name="about" Title="About" FontSize="14" FontWeight="Bold"/>
                    <sc:ProcessExplorer x:Name="pxProcessExplorer" Title="Process Explorer" FontSize="14"/>
                    <sc:DataExplorer x:Name="adDataExplorer" Title="Data Explorer" FontSize="14"/>
                    <!--<sc:UREPExplorer x:Name="adUREPExplorer" Title="UREP Custom Navigation" FontSize="14" Visibility="Hidden"/>-->
                </ad:DockablePane>
            </ad:ResizingPanel>
        </ad:DockingManager>
    </Grid>

The tag sc: is the namespace StaticContent. The namespace includes these files. When opening the project this morning it couldn't find the namespace to reference the XAML pages. After pressing re-build all a number of times and receiving a few "rebuild failed", it just decided to work?

Any Ideas?

Answer 1

Is 'StaticContent' defined under another assembly?

If so look in the project's Properties and check under 'Default Namepace' if its what you expected it to be.