我正在使用 Visual Studio 2015，我有一个包含 2 个不同 Web 应用程序的解决方案。存在一个解决方案及其下的两个项目。与 nuget 相关的文件分布为：
- 包文件夹位于解决方案目录中
- 每个项目目录下的 Package.config
我的解决方案中没有 nuget 文件夹：nuget.config 和 nuget.exe。
我的项目在 Visual Studio 中构建并运行良好，但是在将 VSTS 持续集成与构建解决方案步骤（使用映射到一个项目的构建定义）结合使用时遇到了一个问题，它给出了：
This project references NuGet package(s) that are missing on this computer. Use
NuGet Package Restore to download them. For more information, see The missing file is
..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props.这是 MyProject.csproj 文件：
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\build\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.props" Condition="Exists('..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\build\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.props')" />
<Import Project="..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props" Condition="Exists('..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props')" />
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProductVersion>
</ProductVersion>
<SchemaVersion>2.0</SchemaVersion>
<ProjectGuid>{BBD26A49-D1F4-4391-9D60-2469433DEE0D}</ProjectGuid>
<ProjectTypeGuids>{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
<OutputType>Library</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>AdminUI</RootNamespace>
<AssemblyName>AdminUI</AssemblyName>
<TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
<MvcBuildViews>false</MvcBuildViews>
<UseIISExpress>true</UseIISExpress>
<IISExpressSSLPort />
<IISExpressAnonymousAuthentication />
<IISExpressWindowsAuthentication />
<IISExpressUseClassicPipelineMode />
<UseGlobalApplicationHostFile />
<SccProjectName>SAK</SccProjectName>
<SccLocalPath>SAK</SccLocalPath>
<SccAuxPath>SAK</SccAuxPath>
<SccProvider>SAK</SccProvider>
<NuGetPackageImportStamp>
</NuGetPackageImportStamp>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">我注意到它只尝试导入生成错误的包，但它没有显式导入其他包，而是将它们作为引用包含在内：
<Reference Include="WebGrease">
<Private>True</Private>
<HintPath>..\packages\WebGrease.1.5.2\lib\WebGrease.dll</HintPath>
</Reference>
<Reference Include="Antlr3.Runtime">
<Private>True</Private>
<HintPath>..\packages\Antlr.3.4.1.9004\lib\Antlr3.Runtime.dll</HintPath>
</Reference>这也是myProject.csproj文件的结尾：
<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
<PropertyGroup>
<ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
</PropertyGroup>
<Error Condition="!Exists('..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props'))" />
<Error Condition="!Exists('..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\build\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\build\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.props'))" />
</Target>我想知道为什么它会给出这个错误，考虑到这个包已经在上一步 "Nugget Install"中安装了。为什么它找不到？我在这个问题上花了很多时间！
