这是我在“输出”窗口的“构建”选项卡中看到的内容，无论我重建项目多少次：
------ Build started: Project: MyProject, Configuration: Debug x64 ------
MainResourcesGeneration:
Skipping target "MainResourcesGeneration" because all output files are up-to-date with respect to the input files.
CoreResGen:
No resources are out of date with respect to their source files. Skipping resource generation.
GenerateTargetFrameworkMonikerAttribute:
Skipping target "GenerateTargetFrameworkMonikerAttribute" because all output files are up-to-date with respect to the input files.
CoreCompile:
Skipping target "CoreCompile" because all output files are up-to-date with respect to the input files.
_CopyOutOfDateSourceItemsToOutputDirectory:
Skipping target "_CopyOutOfDateSourceItemsToOutputDirectory" because all output files are up-to-date with respect to the input files.
_CopyAppConfigFile:
Skipping target "_CopyAppConfigFile" because all output files are up-to-date with respect to the input files.
CopyFilesToOutputDirectory:
MyProject -> C:\MySolution\MyProject\bin\x64\Debug\MyProject.dll
Build succeeded.
========== Build: 1 succeeded, 0 failed, 666 up-to-date, 0 skipped ==========
为什么CopyFilesToOutputDirectory目标始终执行？
详细说明：
Visual Studio 2013 Update 5
.NET Framework 4.6.1
MSBuild 4.6.1055.0
将输出详细程度设置为“正常”
没有预构建或后构建步骤
关闭并行项目构建（最大数量设置为1）