'컨트롤'은 선언되지 않은 접두사입니다. XML이 유효하지 않습니다

Question

그래서 여기 내 XAML의 :

<Window x:Class="KinectButton.Window1" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     xmlns:Controls="clr-namespace:Coding4Fun.Kinect.Wpf.Controls;assembly=Coding4Fun.Kinect.Wpf" 
     Title="Weather" Height="1024" Width="1280" WindowStartupLocation="CenterScreen"> 
    <Grid x:Name="LayoutRoot"> 
     <Grid.ColumnDefinitions> 
      <ColumnDefinition Width="812*" /> 
      <ColumnDefinition Width="446*" /> 
     </Grid.ColumnDefinitions> 
     <Canvas Background="#FF371780" Grid.ColumnSpan="2"> 
      <Controls:HoverButton Margin="0" Padding="0" x:Name="kinectButton" ImageSize="50"           
           ImageSource="/Images/RightHand.png" 
           ActiveImageSource="/Images/RightHand.png" 
           TimeInterval="2000" Panel.ZIndex="1000" Canvas.Left="0" Canvas.Top="0" /> 
      <Button x:Name="button1" Content="Close" Height="141" Canvas.Left="979" Canvas.Top="6" Width="273" Background="#FFFFF600" FontSize="53.333" Click="button1_Click" BorderThickness="4" Foreground="#FF1A1717" /> 
      <Label Canvas.Left="0" Canvas.Top="733" Content="" Height="1024" Name="message" Width="1280" Foreground="White" FontSize="40" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" /> 
      <Image Height="128" Name="videoStream" Stretch="Fill" Width="191" Canvas.Left="539" Canvas.Top="825" /> 
     </Canvas> 
    </Grid> 
</Window> 

그리고 그것은 오류를주고 유지 : 는 ''제어 '는 선언되지 않은 접두어. 11 호선, 14 호선. XML이 유효하지 않습니다.

Answer 1

1. Build ->Clean Solution
2. Build ->

Rebuild Solution은 그냥 XAML 테스트 - 모든이 유효하고 문제가 발생하지 않아야한다.