System.Windows.Baml2006.TypeConverterMarkupExtension

你好，我确实遇到了一个问题，很多人似乎都遇到了，但我尝试了建议的解决方案，但都没有奏效。我有这样一个代码，它总是在Window.InitializeComponent（）方法处引发异常（消息："在'System.Windows.Baml2006.TypeConverterMarkupExtension'上提供值时引发异常"）。这是我的Xaml代码：

<Window x:Class="SimpleMoving.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Name="SquareFighter" Height="392" Width="621" KeyDown="Window_KeyDown" KeyUp="Window_KeyUp" ResizeMode="CanMinimize">
    <Canvas Name="MyCanvas">
        <Rectangle Name="Box" Height="60" Canvas.Left="17" Stroke="Black" Canvas.Top="172" Width="30">
            <Rectangle.Fill>
                <ImageBrush ImageSource="pack://application:,,,/Resources/Peanut.png"/>
            </Rectangle.Fill>
        </Rectangle>
        <Rectangle Name="Rec1" Height="30" Canvas.Left="908" Stroke="Black" Canvas.Top="50" Width="30">
            <Rectangle.Fill>
                <ImageBrush ImageSource="pack://application:,,,/Resources/Rock.png"/>
            </Rectangle.Fill>
        </Rectangle>
        <Rectangle Height="30" Canvas.Left="908" Stroke="Black" Canvas.Top="110" Width="30">
            <Rectangle.Fill>
                <ImageBrush ImageSource="pack://application:,,,/Resources/Rock.png"/>
            </Rectangle.Fill>
        </Rectangle>
        <Rectangle Height="30" Canvas.Left="908" Stroke="Black" Canvas.Top="169" Width="30">
            <Rectangle.Fill>
                <ImageBrush ImageSource="pack://application:,,,/Resources/Rock.png"/>
            </Rectangle.Fill>
        </Rectangle>
        <Rectangle Height="30" Canvas.Left="908" Stroke="Black" Canvas.Top="229" Width="30">
            <Rectangle.Fill>
                <ImageBrush ImageSource="pack://application:,,,/Resources/Rock.png"/>
            </Rectangle.Fill>
        </Rectangle>
        <Rectangle Height="30" Canvas.Left="908" Stroke="Black" Canvas.Top="289" Width="30">
            <Rectangle.Fill>
                <ImageBrush ImageSource="pack://application:,,,/Resources/Rock.png"/>
            </Rectangle.Fill>
        </Rectangle>
        <Label Name="LevelLabel" Content="Level: 1" Canvas.Left="54" Canvas.Top="10" Height="38" Width="164" FontSize="20"/>
        <Label Content="Shoot the squares back using WSDA!" Canvas.Left="180" Width="290" FontSize="16"/>
    </Canvas>
</Window>

我不知道该怎么办。我希望你能帮忙。