为Skia WPF设置Uno

Question

我在使用Skia/WPF运行时用Uno编译我的项目时遇到了问题。我会使用UWP，但我需要一些UWP限制的硬件访问权限。这是我的.csproj文件，从repo中的Skia WPF示例和来自Uno Calculator的GTK项目松散地粘贴在一起：

<Project Sdk="MSBuild.Sdk.Extras/2.0.54">

    <PropertyGroup>
        <OutputType>Exe</OutputType>
        <TargetFrameworks>net472;netcoreapp3.1</TargetFrameworks>
        <UseWPF>true</UseWPF>
        <Platforms>AnyCPU;x86;x64</Platforms>
        <UnoSourceGeneratorUseGenerationHost>true</UnoSourceGeneratorUseGenerationHost>
        <UnoSourceGeneratorUseGenerationController>false</UnoSourceGeneratorUseGenerationController>
    </PropertyGroup>

    <ItemGroup Condition="'$(TargetFramework)'=='net472'">
        <Reference Include="System" />
        <Reference Include="System.Data" />
        <Reference Include="System.Xml" />
        <Reference Include="Microsoft.CSharp" />
        <Reference Include="System.Core" />
        <Reference Include="System.Xml.Linq" />
        <Reference Include="System.Data.DataSetExtensions" />
        <Reference Include="System.Net.Http" />
        <Reference Include="System.Xaml">
            <RequiredTargetFramework>4.0</RequiredTargetFramework>
        </Reference>
        <Reference Include="WindowsBase" />
        <Reference Include="PresentationCore" />
        <Reference Include="PresentationFramework" />
    </ItemGroup>

    <ItemGroup>
        <PackageReference Include="Uno.SourceGenerationTasks" Version="3.0.0-dev.16" />
        <PackageReference Include="Uno.UI.Skia.Wpf" Version="3.2.0-dev.206" />
        <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="1.1.1" />
        <PackageReference Include="Microsoft.Extensions.Logging.Filter" Version="1.1.1" />
    </ItemGroup>


    <Import Project="..\UiProject.Shared\UiProject.Shared.projitems" Label="Shared" />
</Project>

我收到以下错误：

1>------ Build started: Project: UiProject.Skia.Wpf, Configuration: Debug x86 ------
1><repo>\UiProject.Skia.Wpf\UiProject.Skia.Wpf.csproj : warning NU1701: Package 'SkiaSharp.Views 2.80.0' was restored using '.NETFramework,Version=v4.6.1, .NETFramework,Version=v4.6.2, .NETFramework,Version=v4.7, .NETFramework,Version=v4.7.1, .NETFramework,Version=v4.7.2, .NETFramework,Version=v4.8' instead of the project target framework '.NETCoreApp,Version=v3.1'. This package may not be fully compatible with your project.
1><repo>\UiProject.Skia.Wpf\UiProject.Skia.Wpf.csproj : warning NU1701: Package 'SkiaSharp.Views 2.80.0' was restored using '.NETFramework,Version=v4.6.1, .NETFramework,Version=v4.6.2, .NETFramework,Version=v4.7, .NETFramework,Version=v4.7.1, .NETFramework,Version=v4.7.2, .NETFramework,Version=v4.8' instead of the project target framework '.NETCoreApp,Version=v3.1'. This package may not be fully compatible with your project.
1><repo>\UiProject.Shared\App.xaml.cs(25,19,25,22): error CS0263: Partial declarations of 'App' must not specify different base classes
1><repo>\UiProject.Shared\MainPage.xaml.cs(24,33,24,41): error CS0263: Partial declarations of 'MainPage' must not specify different base classes
1><repo>\UiProject.Shared\App.xaml.cs(48,33,48,43): error CS0115: 'App.OnLaunched(LaunchActivatedEventArgs)': no suitable method found to override
1>Done building project "UiProject.Skia.Wpf.csproj" -- FAILED.
1><repo>\UiProject.Shared\App.xaml.cs(25,19,25,22): error CS0263: Partial declarations of 'App' must not specify different base classes
1><repo>\UiProject.Shared\MainPage.xaml.cs(24,33,24,41): error CS0263: Partial declarations of 'MainPage' must not specify different base classes
1><repo>\UiProject.Shared\App.xaml.cs(48,33,48,43): error CS0115: 'App.OnLaunched(LaunchActivatedEventArgs)': no suitable method found to override
1>Done building project "UiProject.Skia.Wpf.csproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 4 up-to-date, 0 skipped ==========

看起来XAML是用.NET的程序集编译的，但代码是用Uno的程序集编译的。我不确定如何解决这个问题。是否有任何实际的Skia WPF示例可以参考，即使用NuGet引用？

Answer 1

不要担心Visual Studio模板，它已经过时了。取而代之的是，使用dotnet new模板，将生成正确的项目。请参阅VSCode setup instructions。