包括FSharp.Core在C＃项目：解决冲突的类型 [英] Including FSharp.Core in a C# project: resolving type collisions

问题描述

我使用了一些F＃类型（的矩阵等）从C＃，所以我需要引用FSharp.Core装配在我的C＃项目。到目前为止，所以好。

I'm using some F# types (Matrix et al) from C# and so I need to reference the FSharp.Core assembly in my C# project. So far, so good.

但是，也有明显在mscorlib.dll（V4）定义了一些类型的它们在FSharp.Core（v2）的复制，象 System.Tuple 和 System.IObservable 。我不明白为什么这是在.NET 4 马特·埃利斯明确表示，他们将在自己的MSDN被删除文章：

However, there are apparently some types defined in mscorlib.dll (v4) which are "duplicated" in FSharp.Core (v2), like System.Tuple and System.IObservable. I can't understand why this is in .Net 4. Matt Ellis specifically said they would be removed in his MSDN article:

一语苦难[复制]问题是F＃，而此前已定义的FSharp自己的元组类型。 Core.dll但现在将使用Microsoft .NET Framework中添加4元组。

One language suffering that [duplication] problem was F#, which previously had defined its own tuple type in FSharp.Core.dll but will now use the tuple added in Microsoft .NET Framework 4.

我准备过去看看这个特别的不体面重复，如果我可以只指定我想在我的C＃程序使用哪一个，但是。当我尝试使用 System.Tuple 类型，例如，我得到下面的C＃编译器错误：

I'm ready to look past this particular unseemly duplication if I could just specify which one I want to use in my C# program, however. When I try to use the System.Tuple type, for example, I get the following C# compiler error:

错误2'System.Tuple'两个'C存在类型：\Program文件（x86）\Reference Assemblies\Microsoft\Framework.NETFramework\v4.0\Profile\\ \\Client\mscorlib.dll'和'C：\Program文件（x86）\Reference Assemblies\Microsoft\FSharp\2.0\Runtime\v2.0\FSharp.Core.dll

Error 2 The type 'System.Tuple' exists in both 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.0\Profile\Client\mscorlib.dll' and 'c:\Program Files (x86)\Reference Assemblies\Microsoft\FSharp\2.0\Runtime\v2.0\FSharp.Core.dll'

解决这个问题的方式，很显然，是这别名类型 C＃编译器命令行上的开关：

The way around this, apparently, is a switch on the C# compiler command line which aliases the type:

CSC.EXE MyType.cs /reference:System.Tuple`2=mscorlib.dll /reference:FSharp.Core.dll

csc.exe MyType.cs /reference:System.Tuple`2=mscorlib.dll /reference:FSharp.Core.dll

不过，我不能找到一个办法让Visual Studio中这个参数发送到C＃编译器。

However, I can't find a way to get Visual Studio to send this parameter to the C# compiler.

任何人有一个解决的办法？

Anyone have a solution to this?

推荐答案

您需要引用4.0版的F＃运行时。这个版本与版本4.0 mscorlib程序的对应和不具有冲突的类型。他们将在此目录中。

You need to reference the 4.0 version of the F# runtime. This version corresponds with the 4.0 version of mscorlib and does not have the conflicting types. They will be in this directory

C：\Program文件（x86）\Reference Assemblies\Microsoft\FSharp\2.0 \Runtime\v4.0

C:\Program Files (x86)\Reference Assemblies\Microsoft\FSharp\2.0\Runtime\v4.0

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