预发布 Collections.Immutable [英] pre-release Collections.Immutable

问题描述

有没有人在 F# 中从 NuGet 成功打开预发布的System.Collections.Immutable?

Has anyone succeeded in opening the pre-release System.Collections.Immutable from NuGet in F#?

我收到此错误:

此处需要类型IEnumerable`1"且不可用.您必须添加对程序集System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"的引用.

The type 'IEnumerable`1' is required here and is unavailable. You must add a reference to assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

即使我的项目是 .NET 4.5

Even though my project is .NET 4.5

尝试显式打开 System.Runtime，但也没有用.我正在引用 .NETCorev4.5System.Runtime.dll

Tried explicitly opening System.Runtime and that did not work either. I am referencing .NETCorev4.5System.Runtime.dll

推荐答案

这是 Microsoft 相关团队正在调查的已知问题.同时，以下是解决方法步骤:

This is a known issue that the relevant teams at Microsoft are investigating. In the meantime, here are the workaround steps:

1. 创建一个面向 .NET Framework 4.5 的 F# 应用程序项目
2. Install-Package Microsoft.Bcl.Immutable -pre
3. 添加对%ProgramFiles%Reference AssembliesMicrosoftFramework.NETFrameworkv4.5FacadesSystem.Runtime.dll"的引用
4. 从框架中添加对 System.ComponenModel.Composition.dll 程序集的引用.

在那之后，早期测试表明 F# 可以很好地处理不可变集合.

After that, early testing suggests F# works with the immutable collections just fine.

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