更新MVS 2017到版本15.9.11后出现C2440错误 [英] C2440 error appears after update MVS 2017 to Version 15.9.11

问题描述

您好， 

昨天我将MVS升级到更新版本。突然间，我开始遇到数百个编译器错误，如下所示：

Yesterday I upgraded my MVS to a more recent version. Suddenly I started to have hundreds of compiler errors like the following:

错误C2440：'static_cast'：无法转换为'const wchar_t ...

error C2440: 'static_cast': cannot convert from 'const wchar_t ...

我尝试了与Zc相关的所有内容：strictStrings但没有任何作用。 

I tried everything related to Zc:strictStrings but nothing works. 

错误来自我几个月来成功使用的一些标题。

The errors are coming from some headers that I have been successfully using for months.

感谢您的时间和帮助。

推荐答案

我们不知道编译器在您的标题中看到了什么，但是以下生成了C2440错误 -

We don't know what the compiler is seeing in your headers, but the following generated the C2440 error -

wchar_t *p = static_cast<wchar_t*>(L"String Literal");

在我的VS2017（15.9.11）副本中，通过在编译器命令行的Project属性页面中设置/ Zc：strictStrings-选项来消除错误附加选项 如所示（对于每个平台/配置，根据需要）  -

In my copy of VS2017 (15.9.11) the error was eliminated by setting the /Zc:strictStrings- option in the Project property page for the compiler command line Additional Options  as indicated (for each platform/configuration as needed)  -

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