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我已经浏览该网站一段时间了，试图为这些非常神秘的错误找到解决方案——我发现这些错误都没有帮助我的特殊情况。

我应该注意，我对 C# 或 WPF 的实际工作原理基本上一无所知，这也可以解释为什么这里没有一个线程看起来像我的问题的解决方案。

之后（我真的不知道我做了什么），VS 现在出现了两个（相同的）错误：

Description: Value cannot be null.
Value cannot be null.
Parameter name: key

除此之外，该解决方案不包含任何错误或警告。

双击错误会打开文件，MainWindow.xaml并且没有突出显示为错误或警告的内容。App.xamlLn: 1 Ch: 1

// MainWindow.xaml

<Window x:Class="solution_alpha_pack_roll_generator.MainWindow"
        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"
        mc:Ignorable="d"
        Title="MainWindow" Height="470" Width="800">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>

        <TextBlock Name="Rarities_1" Grid.Row="0" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Lato" Text="Common" />
        <TextBlock Name="Rarities_2" Grid.Row="1" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Lato" Text="Uncommon" />
        <TextBlock Name="Rarities_3" Grid.Row="2" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Lato" Text="Rare" />
        <TextBlock Name="Rarities_4" Grid.Row="3" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Lato" Text="Epic" />
        <TextBlock Name="Rarities_5" Grid.Row="4" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Lato" Text="Legendary" />

        <TextBox Name="Rarities_1_C" Grid.Row="0" Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Consolas" Width="140" Height="50" Text="0.330" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" />
        <TextBox Name="Rarities_2_C" Grid.Row="1" Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Consolas" Width="140" Height="50" Text="0.285" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" />
        <TextBox Name="Rarities_3_C" Grid.Row="2" Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Consolas" Width="140" Height="50" Text="0.224" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" />
        <TextBox Name="Rarities_4_C" Grid.Row="3" Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Consolas" Width="140" Height="50" Text="0.125" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" />
        <TextBox Name="Rarities_5_C" Grid.Row="4" Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="NoWrap" TextAlignment="Center" FontSize="25" FontFamily="Consolas" Width="140" Height="50" Text="0.036" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" />

        <Button Name="Rarities_Defaults" Grid.Row="5" Grid.Column="0" Grid.ColumnSpan="2" VerticalAlignment="Center" HorizontalAlignment="Center" FontSize="25" FontFamily="Lato" Width="300" Height="50" Content="Reset to defaults" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Click="Rarities_Defaults_Click"/>
    </Grid>
</Window>

// App.xaml

<Application x:Class="solution_alpha_pack_roll_generator.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="MainWindow.xaml">
</Application>

编辑：（Output重新）使用 VS 在窗口 中打印它是不可能的：

1>------ Rebuild All started: Project: solution_alpha-pack-roll-generator, Configuration: Debug Any CPU ------
1>App.xaml : error : Value cannot be null.
1>App.xaml : error : Parameter name: key
1>MainWindow.xaml : error : Value cannot be null.
1>MainWindow.xaml : error : Parameter name: key
1>Done building project "solution_alpha-pack-roll-generator.csproj" -- FAILED.
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

编辑 2：这里的GitHub 存储库：https://github.com/DeBedenHasen/alpha-pack-roll-generator

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1 回答 1

3

我认为问题在于您正在引用Xamarin.Forms并Xamarin.Essentials在您的 csproj 中。我克隆了您的存储库，在删除了这些引用（并向 MainWindow.xaml.cs、App.xaml.cs 和 AssemblyInfo.cs 添加了一些 using 语句）之后，它构建得很好。

于 2020-05-21T22:33:26.020 回答