C#交互无法识别ValueTuple引用

Question

我不能在C#交互窗口中使用元组；我得到以下错误：

(1,15): error CS8137: Cannot define a class or member that utilizes tuples because the compiler required type 'System.Runtime.CompilerServices.TupleElementNamesAttribute' cannot be found. Are you missing a reference?
(1,15): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported
(2,9): error CS0103: The name 'IsLiteralTypeName' does not exist in the current context
(2,47): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported
(5,12): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported

即使在我添加了对ValueType程序集的引用之后也是如此：

#r "D:\MyProject\packages\System.ValueTuple.4.3.1\lib\netstandard1.0\System.ValueTuple.dll"

如何使用C#交互窗口中的值元组？

Answer 1

Remove /r:System.ValueTuple.dll来自

C:\Program Files (x86)\Microsoft Visual Studio\2017\<edition>\Common7\IDE\CommonExtensions\Microsoft\ManagedLanguages\VBCSharp\InteractiveComponents\CSharpInteractive.rsp

适用于Visual Studio 2017和

C:\Program Files (x86)\Microsoft Visual Studio\2017\<edition>\MSBuild\15.0\Bin\Roslyn\csi.rsp

对于命令行工具(csi.exe)