我同时安装了 Visual Studio 2013 和 2015。我刚刚将组合解决方案(C#、C++、C++/CLI)升级到 2015 并将平台工具集设置为 v140。

从 Visual Studio 构建工作正常，但不能从 MSBuild 编译。我使用 MSBuild 14，MSBuild 提示找不到 v140，但这是无稽之谈，因为 v140 安装在计算机上的“c:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140”中。

关于升级解决方案的建议无法完成，因为解决方案已经升级并且解决方案上下文菜单中没有该项目。

如果我将项目的平台工具切换到 v120，它就可以工作。

详细信息:

c:\git\hewerMaster>"c:\Program Files (x86)\MSBuild\14.0\Bin\MSBuild.exe"  c:\git
\hewerMaster\Hewer.sln /property:Configuration=Debug /property:Platform=x86
Microsoft (R) Build Engine version 14.0.23107.0
Copyright (C) Microsoft Corporation. All rights reserved.

Building the projects in this solution one at a time. To enable parallel build,
please add the "/m" switch.
Build started 9/12/2015 4:00:25 PM.
Project "c:\git\hewerMaster\Hewer.sln" on node 1 (default targets).
ValidateSolutionConfiguration:
  Building solution configuration "Debug|x86".
ValidateProjects:
  The project "HewerDotNetWrapper" is not selected for building in solution con
  figuration "Debug|x86".
  The project "VisualHewer" is not selected for building in solution configurat
  ion "Debug|x86".
  The project "UnitTestWrapper" is not selected for building in solution config
  uration "Debug|x86".
  The project "ParamsFormatConverter" is not selected for building in solution
  configuration "Debug|x86".
  The project "UnitTestGenerator" is not selected for building in solution conf
  iguration "Debug|x86".
  The project "HewerUnitTestDotNet" is not selected for building in solution co
  nfiguration "Debug|x86".
Project "c:\git\hewerMaster\Hewer.sln" (1) is building "c:\git\hewerMaster\Hewe
rRedirect\HewerRedirect.csproj" (2) on node 1 (default targets).
CoreCompile:
Skipping target "CoreCompile" because all output files are up-to-date with resp
ect to the input files.
_CopyAppConfigFile:
Skipping target "_CopyAppConfigFile" because all output files are up-to-date wi
th respect to the input files.
CopyFilesToOutputDirectory:
  HewerRedirect -> c:\git\hewerMaster\anyCPU\Debug\pbrain-hewer.exe
Done Building Project "c:\git\hewerMaster\HewerRedirect\HewerRedirect.csproj" (
default targets).

Project "c:\git\hewerMaster\Hewer.sln" (1) is building "c:\git\hewerMaster\Hewe
r\Hewer.vcxproj" (3) on node 1 (default targets).
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.Cpp.Platform.t
argets(64,5): error MSB8020: The build tools for v140 (Platform Toolset = 'v140
') cannot be found. To build using the v140 build tools, please install v140 bu
ild tools.  Alternatively, you may upgrade to the current Visual Studio tools b
y selecting the Project menu or right-click the solution, and then selecting "U
pgrade Solution...". [c:\git\hewerMaster\Hewer\Hewer.vcxproj]
Done Building Project "c:\git\hewerMaster\Hewer\Hewer.vcxproj" (default targets
) -- FAILED.

Done Building Project "c:\git\hewerMaster\Hewer.sln" (default targets) -- FAILE
D.


Build FAILED.

更新:

• 有一些项目正在从 Debug X86 中跳过。这是故意的。
• 该项目最初是在 VS2008 中创建的，然后升级到 VS2013，然后又升级到 VS2015。
• 此计算机上安装了两个 Visual Studio(2013 Community 和 2015 Community)。先安装 2013 年，然后再安装 2015 年。

注册表设置如下所示:

更新 2: Minimal, Complete, and Verifiable example

我在 Visual Studio 2015 中创建了空的 C++ 控制台应用程序:

https://dl.dropboxusercontent.com/u/53387801/ConsoleApplication_v140.zip

#include "stdafx.h"

int main()
{
    return 0;
}

我可以在 Visual Studio 中构建它，但我在 MSBuild 中遇到同样的问题:

c:\>"c:\Program Files (x86)\MSBuild\14.0\Bin\MSBuild" "C:\temp\vs2015_simplest\C
onsoleApplication1\consoleApplication1.sln"
Microsoft (R) Build Engine version 14.0.23107.0
Copyright (C) Microsoft Corporation. All rights reserved.

Building the projects in this solution one at a time. To enable parallel build,
please add the "/m" switch.
Build started 9/16/2015 10:16:20 AM.
Project "C:\temp\vs2015_simplest\ConsoleApplication1\consoleApplication1.sln" o
n node 1 (default targets).
ValidateSolutionConfiguration:
  Building solution configuration "Debug|x64".
Project "C:\temp\vs2015_simplest\ConsoleApplication1\consoleApplication1.sln" (
1) is building "C:\temp\vs2015_simplest\ConsoleApplication1\ConsoleApplication1
\ConsoleApplication1.vcxproj" (2) on node 1 (default targets).
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.Cpp.Platform.t
argets(64,5): error MSB8020: The build tools for v140 (Platform Toolset = 'v140
') cannot be found. To build using the v140 build tools, please install v140 bu
ild tools.  Alternatively, you may upgrade to the current Visual Studio tools b
y selecting the Project menu or right-click the solution, and then selecting "U
pgrade Solution...". [C:\temp\vs2015_simplest\ConsoleApplication1\ConsoleApplic
ation1\ConsoleApplication1.vcxproj]
Done Building Project "C:\temp\vs2015_simplest\ConsoleApplication1\ConsoleAppli
cation1\ConsoleApplication1.vcxproj" (default targets) -- FAILED.

Done Building Project "C:\temp\vs2015_simplest\ConsoleApplication1\consoleAppli
cation1.sln" (default targets) -- FAILED.


Build FAILED.

"C:\temp\vs2015_simplest\ConsoleApplication1\consoleApplication1.sln" (default
target) (1) ->
"C:\temp\vs2015_simplest\ConsoleApplication1\ConsoleApplication1\ConsoleApplica
tion1.vcxproj" (default target) (2) ->
(PlatformPrepareForBuild target) ->
  C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.Cpp.Platform
.targets(64,5): error MSB8020: The build tools for v140 (Platform Toolset = 'v1
40') cannot be found. To build using the v140 build tools, please install v140
build tools.  Alternatively, you may upgrade to the current Visual Studio tools
 by selecting the Project menu or right-click the solution, and then selecting
"Upgrade Solution...". [C:\temp\vs2015_simplest\ConsoleApplication1\ConsoleAppl
ication1\ConsoleApplication1.vcxproj]

    0 Warning(s)
    1 Error(s)

Time Elapsed 00:00:00.14

c:\>

已解决:

环境变量 VisualStudioVersion 被设置为 12.0 而不是 14.0 将值更改为 14.0 解决了这个问题。

简单的控制台应用程序在环境变量 VisualStudioVersion 更改后立即开始工作，并且在 Windows 注销后登录。

修改环境变量VisualStudioVersion后，原工程仍然无法编译。重新定位解决方案上下文菜单出现在 Visual Studio 2015 中。所以我重新定位解决方案。重定向后解决方案仍然无法编译(未找到 v140)。最后，我将平台工具集从 v140(未安装) 更改为 Visual Studio 2015 (v140)。现在也可以从 Visual Studio 和 MSBuild 编译该解决方案。

最佳答案

您的问题是您将环境变量 VisualStudioVersion 设置为 12.0。这会告知 MSBuild 使用 Visual Studio 2013 (V120) 工具，这些工具不支持 Visual Studio 2015 (V140) 构建工具。如果您取消设置此环境变量，或将 /p:VisualStudioVersion=14.0 选项传递给 MSBuild，您的项目应该会生成。 (或者至少克服这个错误)。

您可以在标题为 Visual Studio project compatibility and VisualStudioVersion 的 MSDN 博客条目中找到有关 VisualStudioVersion 变量的更多信息.

关于c++ - 通过 MSBuild 构建 Visual Studio 2015 C++ 项目 (v140) 失败 - 找不到 v140，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32539801/