Msbuild Microsoft.Build.CPPTasks.Common找不到Microsoft.Build.Tasks.Core 我刚刚从Visual C++ 2012升级到Visual C++ 2017，从MSBudio: 开始构建失败。

C:\Program Files（x86）\Microsoft Visual Studio\2017\Professional\Common7\IDE\VC\VCTargets\Microsoft.Cpp.Current.targets（64,5）：错误MSB4062:无法从程序集C:\Program Files（x86）\Microsoft Visual Studio\2017\Professional\Common7\IDE\VC\VCTargets\Microsoft.Build.CppTasks.Common.dll加载“SetEnv”任务。无法加载文件或程序集“Microsoft.Build.Utilities.Core，Version=15.0.0.0，Culture=neutral，PublicKeyToken=b03f5f7f11d50a3a”或其依赖项之一。系统找不到指定的文件。确认声明正确，程序集及其所有依赖项可用，并且任务包含实现Microsoft.Build.Framework.ITask的公共类。[C:\src\my project.vcxproj]

Fusion日志显示了不好的事情：

*** Assembly Binder Log Entry  (2/12/2018 @ 1:44:29 PM) ***

The operation failed.
Bind result: hr = 0x80070002. The system cannot find the file specified.

Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
Running under executable  C:\windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
--- A detailed error log follows. 

=== Pre-bind state information ===
LOG: DisplayName = Microsoft.Build.Utilities.Core, Version=15.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
 (Fully-specified)
LOG: Appbase = file:///C:/windows/Microsoft.NET/Framework/v4.0.30319/
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = msbuild.exe
Calling assembly : Microsoft.Build.CPPTasks.Common, Version=15.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a.
===
LOG: This bind starts in LoadFrom load context.
WRN: Native image will not be probed in LoadFrom context. Native image will only be probed in default load context, like with Assembly.Load().
LOG: Using application configuration file: C:\windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe.Config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Post-policy reference: Microsoft.Build.Utilities.Core, Version=15.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
LOG: GAC Lookup was unsuccessful.
LOG: Attempting download of new URL file:///C:/windows/Microsoft.NET/Framework/v4.0.30319/Microsoft.Build.Utilities.Core.DLL.
LOG: Attempting download of new URL file:///C:/windows/Microsoft.NET/Framework/v4.0.30319/Microsoft.Build.Utilities.Core/Microsoft.Build.Utilities.Core.DLL.
LOG: Attempting download of new URL file:///C:/windows/Microsoft.NET/Framework/v4.0.30319/Microsoft.Build.Utilities.Core.EXE.
LOG: Attempting download of new URL file:///C:/windows/Microsoft.NET/Framework/v4.0.30319/Microsoft.Build.Utilities.Core/Microsoft.Build.Utilities.Core.EXE.
LOG: Attempting download of new URL file:///C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional/Common7/IDE/VC/VCTargets/Microsoft.Build.Utilities.Core.DLL.
LOG: Attempting download of new URL file:///C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional/Common7/IDE/VC/VCTargets/Microsoft.Build.Utilities.Core/Microsoft.Build.Utilities.Core.DLL.
LOG: Attempting download of new URL file:///C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional/Common7/IDE/VC/VCTargets/Microsoft.Build.Utilities.Core.EXE.
LOG: Attempting download of new URL file:///C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional/Common7/IDE/VC/VCTargets/Microsoft.Build.Utilities.Core/Microsoft.Build.Utilities.Core.EXE.
LOG: All probing URLs attempted and failed.

刚刚在上发布了这篇文章，但由于我无法理解的原因，他们以“不是Bug”的名义关闭了它。我希望StackOverflow会更有帮助。：）

Microsoft.Build.CPPTasks.Common找不到Microsoft.Build.Tasks.Core

您似乎正在使用.NET framework中的旧MSBuild.exe。将项目从VS2012升级到VS2017后，应在以下位置使用MSBuild.exe：

C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\15.0\Bin\MSBuild.exe

这是因为：

从Visual Studio 2013开始，2013版本的MSBuild将 作为Visual Studio的一部分而不是.NET Framework发布。这 转换允许我们更快速地发展MSBuild

---

希望这有帮助。

您必须编辑此目录中的文件：

C:\ProgramFiles（x86）\Microsoft Visual Studio\2017\Community\Common7\IDE\VC\VCTargets

称为：

Microsoft.Cpp.Clang.targets

将第17行编辑为：

<UsingTask TaskName="ClangCompile" AssemblyFile="C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\VC\VCTargets\Microsoft.Build.CppTasks.Common.dll"/>

---

请注意，如果这确实会产生其他问题，您可能需要安装正确的MSBuild。

万分感谢。实际上，C++项目的生成脚本仍然指定旧MSBuw位置。我很高兴有一个有意义的答案，即使我因此觉得有点愚蠢。。。