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

Question

我刚刚将项目从Visual C ++ 2012升级到了Visual C ++ 2017，并且我从MSBuild中遇到构建失败的问题：

C：\ Program Files（x86）\ Microsoft Visual Studio \ 2017 \ Professional \ Common7 \ IDE \ VC \ VCTargets \ Microsoft.Cpp.Current.targets（64,5）：错误MSB4062：无法加载“ SetEnv”任务从程序集C：\ Program Files（x86）\ Microsoft Visual Studio \ 2017 \ Professional \ Common7 \ IDE \ VC \ VCTargets \ Microsoft.Build.CppTasks.Common.dll。无法加载文件或程序集“ Microsoft.Build.Utilities.Core，版本= 15.0.0.0，Culture = neutral，PublicKeyToken = b03f5f7f11d50a3a”或其依赖项之一。该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均可用，并且任务包含实现Microsoft.Build.Framework.ITask的公共类。[C：\ src \ my-project.vcxproj]

Fusion日志显示了坏消息：

*** 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Visual Studio社区中发布了此内容，但是在另一个几乎相同的错误报告中，由于我无法理解的原因，他们将其关闭为“不是错误”。我希望StackOverflow会有所帮助。:)

Answer 1

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

看来您正在使用.NET框架中的旧MSBuild.exe。将项目从VS2012升级到VS2017后，应从以下位置使用MSBuild.exe：

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

那是因为MSBuild现在是Visual Studio的一部分！：

从Visual Studio 2013开始，MSBuild 2013版本将作为Visual Studio的一部分而不是.NET Framework发行。这种过渡使我们可以更快地发展MSBuild。

希望这可以帮助。