Как исправить ошибку в данном коде?

<Window x:Class="table.M_Page"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
      xmlns:local="clr-namespace:table"
      mc:Ignorable="d" 
      d:DesignHeight="429" d:DesignWidth="614"
      Title="M_Page" SizeToContent="WidthAndHeight">
 
    <Grid x:Name="LayoutRoot" Background="White" Height="404" Width="587">
        <Image Source="/560174306.jpg" Stretch="Fill" Margin="0,67,0,0"/>
        <local:Page1 Height="48" Margin="8,8,50,0" VerticalAlignment="Top" d:IsPrototypingComposition="True"/>
    </Grid>
</Window>
 
 
 
 
<Page x:Class="table.Page1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:table"
    mc:Ignorable="d"
    d:DesignWidth="582" d:DesignHeight="48" Height="48" Width="582" >
 
    <Grid x:Name="LayoutRoot">
        <Button Content="Легкий Вес" HorizontalAlignment="Left" Width="174"/>
        <Button Content="Супер тяж" HorizontalAlignment="Right" Width="174"/>
        <Button Content="Тяжолый вес" Margin="205,0,205,0"/>
    </Grid>
</Page>

<Frame Source="Page1.xaml" />