如何删除异常“预定义类型'ValueTuple`2'必须是结构"调试的时候? [英] How can I remove exception "Predefined type 'ValueTuple`2' must be a struct" when debugging?

问题描述

我开始在 c# 7.0 中使用新的元组功能，但我注意到无论是在返回元组的函数中还是在其调用者中，都无法在调试模式下检查变量值.而是显示一个异常:

I started using the new tuple feature in c# 7.0 but I noticed that neither in the function that returns a tuple nor in its caller is possible to check the variable values in debug mode. Instead an exception is shown:

$exception  error CS8182: Predefined type 'ValueTuple`2' must be a struct.  

有没有办法消除该故障并正常调试?

Is there a way to get rid of that glitch and debug normally?

推荐答案

这似乎是微软已经修复的一个错误，但它会在未来的更新中提供(2017 年)https://github.com/dotnet/roslyn/pull/16930

It seems a bug that Microsoft has fixed but it will be available in a future update (2017) https://github.com/dotnet/roslyn/pull/16930

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