Import元素仅在
当我用复制粘贴这三个属性来替换语句时，为什么它不适用于<Import />这个文件？
..//Setup.Version.proj
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<InstallerMajorVersion>7</InstallerMajorVersion>
<InstallerMinorVersion>7</InstallerMinorVersion>
<InstallerBuildNumber>7</InstallerBuildNumber>
</PropertyGroup>
</Project>
作品：
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<InstallerMajorVersion>7</InstallerMajorVersion>
<InstallerMinorVersion>7</InstallerMinorVersion>
<InstallerBuildNumber>7</InstallerBuildNumber>
<OutputName>asdf-$(InstallerMajorVersion).$(InstallerMinorVersion).$(InstallerBuildNumber)</OutputName>
<OutputType>Package</OutputType>
不起作用：
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="../../Setup.Version.proj" />
<PropertyGroup>
<OutputName>asdf-$(InstallerMajorVersion).$(InstallerMinorVersion).$(InstallerBuildNumber)</OutputName>
<OutputType>Package</OutputType>
这里的变量只是被疏散为空字符串…：（我确信导入项目的路径是正确的。
因此，当我从命令行运行msbuild时，它似乎工作得很好，但当我在Visual Studio中构建项目时，它就不工作了。为什么在这个世界上
我尝试过复制，一切都正常：
导入项目
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<InstallerMajorVersion>7</InstallerMajorVersion>
<InstallerMinorVersion>7</InstallerMinorVersion>
<InstallerBuildNumber>7</InstallerBuildNumber>
</PropertyGroup>
</Project>
main.proj
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="importme.proj" />
<PropertyGroup>
<OutputName>asdf-$(InstallerMajorVersion).$(InstallerMinorVersion).$(InstallerBuildNumber)</OutputName>
<OutputType>Package</OutputType>
</PropertyGroup>
<Target Name="Build">
<Message Text="$(OutputName)"/>
</Target>
</Project>
输出
Microsoft (R) Build Engine version 4.0.30319.17626
[Microsoft .NET Framework, version 4.0.30319.17626]
Copyright (C) Microsoft Corporation. All rights reserved.
Build started 10.09.2012 12:35:12.
Project "d:tempSOmain.proj" on node 1 (default targets).
Build:
asdf-7.7.7
Done Building Project "d:tempSOmain.proj" (default targets).
Build succeeded.
0 Warning(s)
0 Error(s)
Time Elapsed 00:00:00.55
使用运行
msbuild main.proj
更新：您需要重新加载要更新的Include'd文件的项目，或者使用变通方法。
它不起作用的原因是Visual Studio缓存了包含的文件，因此我对它所做的任何更改都要等到我重新加载解决方案或重新启动Visual Studio后才能生效。这似乎是VS 2010的一个限制。在重新加载VS 2010之后，一切都如预期的那样工作。
Project元素下有效。但是，代码似乎希望将这些值导入到<ProjectGroup>元素中。尝试在Setup.Version.project中将这些值声明为变量，并在主MSBuild文件中引用它们，例如：
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="../../Setup.Version.proj" /> <!-- Variables declared in here -->
<PropertyGroup>
<InstallerMajorVersion>$(MyInstallerMajorVersion)</InstallerMajorVersion>
<InstallerMinorVersion>$(MyInstallerMinorVersion)</InstallerMinorVersion>
<InstallerBuildNumber>$(MyInstallerBuildNumber)</InstallerBuildNumber>
<OutputName>asdf-$(InstallerMajorVersion).$(InstallerMinorVersion).$(InstallerBuildNumber)</OutputName>
<OutputType>Package</OutputType>