无法在 UWP Projet 上安装 Microsoft.Owin

Question

我正在 Visual Studio 2017 上开发 UWP Projet。 我只是无法从 Nuget 包安装程序安装 Microsoft.Owin。 我正在使用 .NET Framework 4.7 版

这是我的错误

Restoring packages for c:\users\79037\documents\visual studio 2017\Projects\Epicture472\Epicture472\Epicture472.csproj...
Package Microsoft.Owin 3.1.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586). Package Microsoft.Owin 3.1.0 supports: net45 (.NETFramework,Version=v4.5)
Package Owin 1.0.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586). Package Owin 1.0.0 supports: net40 (.NETFramework,Version=v4.0)
One or more packages are incompatible with UAP,Version=v10.0.10586.
Package Microsoft.Owin 3.1.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-arm. Package Microsoft.Owin 3.1.0 supports: net45 (.NETFramework,Version=v4.5)
Package Owin 1.0.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-arm. Package Owin 1.0.0 supports: net40 (.NETFramework,Version=v4.0)
One or more packages are incompatible with UAP,Version=v10.0.10586 (win10-arm).
Package Microsoft.Owin 3.1.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-arm-aot. Package Microsoft.Owin 3.1.0 supports: net45 (.NETFramework,Version=v4.5)
Package Owin 1.0.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-arm-aot. Package Owin 1.0.0 supports: net40 (.NETFramework,Version=v4.0)
One or more packages are incompatible with UAP,Version=v10.0.10586 (win10-arm-aot).
Package Microsoft.Owin 3.1.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-x64. Package Microsoft.Owin 3.1.0 supports: net45 (.NETFramework,Version=v4.5)
Package Owin 1.0.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-x64. Package Owin 1.0.0 supports: net40 (.NETFramework,Version=v4.0)
One or more packages are incompatible with UAP,Version=v10.0.10586 (win10-x64).
Package Microsoft.Owin 3.1.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-x64-aot. Package Microsoft.Owin 3.1.0 supports: net45 (.NETFramework,Version=v4.5)
Package Owin 1.0.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-x64-aot. Package Owin 1.0.0 supports: net40 (.NETFramework,Version=v4.0)
One or more packages are incompatible with UAP,Version=v10.0.10586 (win10-x64-aot).
Package Microsoft.Owin 3.1.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-x86. Package Microsoft.Owin 3.1.0 supports: net45 (.NETFramework,Version=v4.5)
Package Owin 1.0.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-x86. Package Owin 1.0.0 supports: net40 (.NETFramework,Version=v4.0)
One or more packages are incompatible with UAP,Version=v10.0.10586 (win10-x86).
Package Microsoft.Owin 3.1.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-x86-aot. Package Microsoft.Owin 3.1.0 supports: net45 (.NETFramework,Version=v4.5)
Package Owin 1.0.0 is not compatible with uap10.0.10586 (UAP,Version=v10.0.10586) / win10-x86-aot. Package Owin 1.0.0 supports: net40 (.NETFramework,Version=v4.0)
One or more packages are incompatible with UAP,Version=v10.0.10586 (win10-x86-aot).
Package restore failed. Rolling back package changes for 'Epicture472'.
Time Elapsed: 00:00:01.4498990
========== Finished ==========

Answer 1

正如你的错误列表所说； Microsoft.Owin 与 UWP 项目不兼容。实际上，UWP 甚至不在 .NET Framework 上运行（因此安装的版本无关紧要）；而是在 .NET Core 上运行。

您需要找到一个针对 .NET Standard UWP 实现版本的不同库。今天将是 1.4 或更早版本。您可以在 MSDN 上查看当前平台列表以及它们实现的 .NET Standard 版本