缺少NuGet包

我研究了这个问题，但没有一个解决办法有效。我安装了Visual Studio Professional 2015，我正在使用TFS。我的NuGet版本是3.1.6。这个问题只发生在我的c# Web API/MVC项目中。

我得到以下错误:

这个项目引用了NuGet包(s)，这是缺失的电脑。使用NuGet包还原来下载它们。更多的信息，见http://go.microsoft.com/fwlink/?LinkID=322105。的丢失的文件是 . . \ \ Microsoft.Net.Compilers.1.0.0 \制造\ Microsoft.Net.Compilers.props包

I do not have .nuget folder in my solutions. I have a packages folder in the solution and when I delete it, it seems like NuGet does rebuild the dependencies but the project still has the above error. I tried removing the project from TFS and it didn't fix it. Along with the above error, all the references in the project have yellow warning signs and say they are missing. When I checked the NuGet Package Manager for the project, everything that is "missing" has a green tick next to it, including Microsoft.Net.Compilers. I tried adding a new Web API/MVC project and it faced a similar problem where most references such as Owin were "missing" with the yellow warning sign.

当前回答

我的工作时，我复制包文件夹解决方案文件和项目文件夹。我只是没有复制包文件夹从以前的地方。

2016-10-11 14:41:36

其他回答

这似乎有多种原因。

对于我来说，.csproj文件包含了对Microsoft.Bcl.Build.targets两个不同版本的引用:

<Import Project="..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets" Condition="Exists('..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" />
<Target Name="EnsureBclBuildImported" BeforeTargets="BeforeBuild" Condition="'$(BclBuildImported)' == ''">
    <Error Condition="!Exists('..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=317567." HelpKeyword="BCLBUILD2001" />
    <Error Condition="Exists('..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568." HelpKeyword="BCLBUILD2002" />
</Target>


<Import Project="..\packages\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets" Condition="Exists('..\packages\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets')" />
<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.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets'))" />
</Target>

我删除了旧的参考，它解决了这个问题。

2019-10-28 20:34:26

在我的案例中工作的解决方案- Visual Studio 2015 enterprise，项目.NET 4.6.1

升级至Update 3 安装Web开发工具

2017-01-24 15:37:58

您还可以使用建议的错误消息作为提示。下面是如何找到解决方案的管理包，并单击解决丢失的nuget包。

就是这样

2016-12-06 16:07:46

在我的例子中，*中缺少<RestorePackages>true</RestorePackages>。csproj文件。没有必要删除我在前面的回答中看到的代码片段。

2019-06-27 08:14:48

为了在这里展开一些答案，是的，你可以从你的.csproj文件中删除以下块:

<目标

这解决了问题，但在我的情况下，我注意到我有额外的引用。net。编译器和。codedom。不同版本的供应商:

<Error Condition="!Exists('..\packages\Microsoft.Net.Compilers.1.0.0
<Error Condition="!Exists('..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\

<Error Condition="!Exists('..\packages\Microsoft.Net.Compilers.2.0.1
<Error Condition="!Exists('..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.3\

当我的包裹。配置仅参考以下内容:

<package id="Microsoft.Net.Compilers" version="2.0.1"
<package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.3"

从.csproj文件中删除1.0.0项解决了这个问题。

2017-03-27 11:49:28

缺少NuGet包

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