由于 Nuget 错误 NU1201，无法将 WPF 应用程序从 .Net Framework 4.8 升级到 .Net Framework 4.8.1

Question

我有一个基于 .Net Framework 4.8 并使用 Windows Application Packaging Project 打包的 WPF 项目。当我尝试将其升级到 .Net Framework 4.8.1 以支持 ARM64 时，我在 Nuget 恢复期间收到 NU1201 错误。

NU1201：WpfApp7 项目与 uap10.0.18362（UAP，版本 = v10.0.18362）不兼容。项目 WpfApp7 支持：net481 (.NETFramework,Version=v4.8.1)

我试图将所有内容削减到最小的可重现回购here：

有2个tags：

• netframework48和
• netframework481

它们的区别在于在项目属性视图中切换到“.Net Framework 4.8.1”：

在 netframework48 上，运行 nuget restore .\WpfApp7.sln 成功恢复包，而在 netframework481 上，相同的命令失败并显示以下错误消息。

> nuget restore .\WpfApp7.sln
MSBuild auto-detection: using msbuild version '17.3.1.41501' from 'd:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\bin'.
Assets file has not changed. Skipping assets file writing. Path: D:\Work\temp\WpfApp7\WpfApp7\obj\project.assets.json
Restored D:\Work\temp\WpfApp7\WpfApp7\WpfApp7.csproj (in 69 ms).
Restoring packages for D:\Work\temp\WpfApp7\WpfApp7.Package\WpfApp7.Package.wapproj...
NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362). Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-arm. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-arm-aot. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-arm64-aot. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-x64. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-x64-aot. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-x86. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-x86-aot. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
Assets file has not changed. Skipping assets file writing. Path: D:\Work\temp\WpfApp7\WpfApp7.Package\obj\project.assets.json
Failed to restore D:\Work\temp\WpfApp7\WpfApp7.Package\WpfApp7.Package.wapproj (in 500 ms).

Errors in D:\Work\temp\WpfApp7\WpfApp7.Package\WpfApp7.Package.wapproj
    NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362). Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
    NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-arm. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
    NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-arm-aot. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
    NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-arm64-aot. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
    NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-x64. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
    NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-x64-aot. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
    NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-x86. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)
    NU1201: Project WpfApp7 is not compatible with uap10.0.18362 (UAP,Version=v10.0.18362) / win10-x86-aot. Project WpfApp7 supports: net481 (.NETFramework,Version=v4.8.1)

NuGet Config files used:
    C:\Users\arieszhang\AppData\Roaming\NuGet\NuGet.Config
    C:\Program Files (x86)\NuGet\Config\Microsoft.VisualStudio.FallbackLocation.config
    C:\Program Files (x86)\NuGet\Config\Microsoft.VisualStudio.Offline.config

Feeds used:
    C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\
    https://api.nuget.org/v3/index.json
1 of 2 projects are up-to-date for restore.

搜索了一圈，但仍然没有弄清楚这个错误的确切含义？以及如何解决这个问题？在我的项目中，既没有项目依赖项，也没有从 NetStandard 到 NetCoreApp 的依赖项，正如错误的 definition 所说。

我已经尝试了 WpfApp7.Package 属性中的每个 UWP 目标，但无论选择哪个最低版本，错误仍然存​​在，因此我假设 UWP 目标版本不太可能是原因。

同样的问题也在这里交叉发布：https://github.com/NuGet/Home/discussions/12206

---

2022 年 11 月 12 日更新： 在上面的 github 问题中有一个很好的答案。请在此处查看：https://github.com/NuGet/Home/discussions/12206#discussioncomment-4082656。

Answer 1

请在此处查看所有受支持的 .NET Framework 4.8.1 Windows 版本（在this blog post 中找到）：

Windows 客户端版本：Windows 11，Windows 10 版本 21H2、Windows 10 版本 21H1、Windows 10 版本 20H2

因此，从那条信息来看，我会说 Windows 10 10.0.18362 aka Windows 10 版本 1903 对于 .NET Framework 4.8.1 来说太旧了。