title: Transferring user control from one project to other
body: <p>I have to following user control in one project.</p>
  <pre><code>&lt;UserControl x:Class=&quot;Support.Throbber&quot;
           xmlns=&quot;http://schemas.microsoft.com/winfx/2006/xaml/presentation&quot;
           xmlns:x=&quot;http://schemas.microsoft.com/winfx/2006/xaml&quot;
           xmlns:mc=&quot;http://schemas.openxmlformats.org/markup-compatibility/2006&quot; 
           xmlns:d=&quot;http://schemas.microsoft.com/expression/blend/2008&quot; 
           xmlns:ed=&quot;http://schemas.microsoft.com/expression/2010/drawing&quot;
           xmlns:i=&quot;http://schemas.microsoft.com/expression/2010/interactivity&quot;
           xmlns:ei=&quot;http://schemas.microsoft.com/expression/2010/interactions&quot;
           mc:Ignorable=&quot;d&quot; 
           d:DesignHeight=&quot;40&quot; d:DesignWidth=&quot;40&quot;
           &gt;
  &lt;UserControl.Resources&gt;
  
      &lt;Storyboard x:Key=&quot;SpinIt&quot;&gt;
          &lt;DoubleAnimationUsingKeyFrames 
              Storyboard.TargetProperty=&quot;(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)&quot;
              RepeatBehavior=&quot;30x&quot;
              Storyboard.TargetName=&quot;ArcContainer&quot;&gt;
              &lt;EasingDoubleKeyFrame KeyTime=&quot;0:0:1&quot; Value=&quot;360&quot;/&gt;
          &lt;/DoubleAnimationUsingKeyFrames&gt;
      &lt;/Storyboard&gt;
  
  &lt;/UserControl.Resources&gt;
  &lt;UserControl.Triggers&gt;
      &lt;EventTrigger RoutedEvent=&quot;UIElement.GotFocus&quot; SourceName=&quot;ArcContainer&quot;&gt;
          &lt;BeginStoryboard Storyboard=&quot;{StaticResource SpinIt}&quot;/&gt;
      &lt;/EventTrigger&gt;
  &lt;/UserControl.Triggers&gt;
  
  &lt;Grid Height=&quot;40&quot; Width=&quot;40&quot;&gt;
      &lt;ContentControl x:Name=&quot;ArcContainer&quot; RenderTransformOrigin=&quot;0.5,0.5&quot;&gt;
          &lt;ContentControl.RenderTransform&gt;
              &lt;TransformGroup&gt;
                  &lt;ScaleTransform/&gt;
                  &lt;SkewTransform/&gt;
                  &lt;RotateTransform/&gt;
                  &lt;TranslateTransform/&gt;
              &lt;/TransformGroup&gt;
          &lt;/ContentControl.RenderTransform&gt;
          &lt;ContentControl.Template&gt;
              &lt;ControlTemplate TargetType=&quot;{x:Type ContentControl}&quot;&gt;
                  &lt;ed:Arc x:Name=&quot;arc&quot; ArcThickness=&quot;8&quot; 
                      EndAngle=&quot;380&quot; Height=&quot;40&quot; Stretch=&quot;None&quot;
                      StartAngle=&quot;200&quot; UseLayoutRounding=&quot;False&quot; Width=&quot;40&quot; 
                      RenderTransformOrigin=&quot;0.5,0.5&quot;&gt;
                      &lt;ed:Arc.Fill&gt;
                          &lt;LinearGradientBrush EndPoint=&quot;0.5,.85&quot; StartPoint=&quot;0.5,0&quot;&gt;
                              &lt;GradientStop Color=&quot;CadetBlue&quot;/&gt;
                              &lt;GradientStop Color=&quot;White&quot; Offset=&quot;1&quot;/&gt;
                          &lt;/LinearGradientBrush&gt;
                      &lt;/ed:Arc.Fill&gt;
                  &lt;/ed:Arc&gt;
              &lt;/ControlTemplate&gt;
          &lt;/ContentControl.Template&gt;
      &lt;/ContentControl&gt;
  &lt;/Grid&gt;
  </code></pre>
  
  <p>In the project from where I copy the code it compiles and works perfectly but when transferring to another project I get the erros:</p>
  <blockquote>
  <p>&quot;Error    4   The attachable property 'Fill' was not found in type 'Arc'&quot;</p>
  <p>Error 1   The name &quot;Arc&quot; does not exist in the namespace &quot;<code>http://schemas.microsoft.com/expression/2010/drawing</code>&quot;.</p>
  </blockquote>
  <p>What am doing wrong what am I missing got stuck here...</p>