从 .NET Core 1.0 类库引用 mscorlib 4.0.0.0 [英] Referencing mscorlib 4.0.0.0 from .NET Core 1.0 class library

问题描述

我有一个面向 .NET 4.6.1 的 .NET Core 1.0 类库，并引用了 .NET Standard Library 1.6.0 和 Identity Framework 2.2.1

I have a .NET Core 1.0 class library which targets .NET 4.6.1 and references the .NET Standard Library 1.6.0 and Identity Framework 2.2.1

project.json

{
    "version": "1.0.0-*",

    "dependencies": {
        "Microsoft.AspNet.Identity.EntityFramework": "2.2.1",
        "System.Runtime": "4.1.0",
        "NETStandard.Library": "1.6.0"
    },

    "frameworks": {
        "netstandard1.6": {
            "imports": [
                "net461"
            ]
        }
    }
}

在我的项目中，我只是创建身份模型，它扩展了基本的身份框架模型(用户、角色等).当我尝试编译时，会发生这种情况...

In my project I'm just creating the identity models, which extend the base Identity Framework models (User, Role etc). When I try to compile, this happens...

任何想法如何解决这个问题?

Any ideas how to resolve this?

推荐答案

你的项目文件有两个问题，一个容易修复，一个不可能修复;)

There are two problems with your project file here, one simple to fix, one impossible to fix ;)

• 您的项目不针对 net461 和 netstandard1.6.你的 project.json 说的是:为 netstandard1.6 构建目标并欺骗 NuGet 并声称你是 net461(这就是 import确实......不相信我，查一下;)).由于您的 project.json 欺骗了 NuGet，您可以添加 Microsoft.AspNet.Identity.EntityFramework.并行添加 net461 和 netstandard1.6 也无济于事，因为您无法添加依赖项.
• NuGet 依赖项 Microsoft.AspNet.Identity.EntityFramework 于 2015 年发布，基于 .NET Framework(基于 mscorlib)，而不是基于 .NET Standard/.NET Core(基于 System.Runtime).对于依赖项基于 mscorlib 而不是 System.Runtime 的事实，谎言无济于事.

• Your project does not target net461 and netstandard1.6. What your project.json says is: Build target for netstandard1.6 and lie to NuGet and claim you are net461 (that lying is what import does ... do not believe me, look it up ;)). And since your project.json lied to NuGet, you where able to add Microsoft.AspNet.Identity.EntityFramework. Adding net461 and netstandard1.6 in parallel will not help you either because you cannot add the dependency then.
• The NuGet dependency Microsoft.AspNet.Identity.EntityFramework is released in 2015 and based on the .NET Framework (mscorlib based) and not on .NET Standard / .NET Core (System.Runtime based). The lying does not help about the fact that the dependency is based on mscorlib and not System.Runtime.

您可以尝试的是(正确地)并行定位 net461 和 netstandard1.6 并尝试使用 Microsoft.AspNet.Identity 进行并行实现.EntityFramework 和 Microsoft.AspNetCore.Identity.EntityFrameworkCore 分别使用 #ifdefs.但是，结果会有多有用，我不知道将使用什么结果库;)

What you could try, is targeting (correctly) in parallel net461 and netstandard1.6 and try to do a parallel implementation with Microsoft.AspNet.Identity.EntityFramework and Microsoft.AspNetCore.Identity.EntityFrameworkCore respectively using #ifdefs. However, how useful the result would be, I have no idea for what the resulting library would be used ;)

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