blocks|key|2764002|text|你也从磁盘上删除了NuGet.targets文件吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2764003|如果NuGet.targets文件在那里，Visual+Studio+/+NuGet.exe将尝试执行MSBuild包还原。|2764004|有关详细信息，请参阅this+doc。|offset|length|2764005|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.nuget.org/docs/workflows/migrating-to-automatic-package-restore^0|0|0|A|8|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Have you deleted the NuGet.targets file from disk too?
If the NuGet.targets file is there, Visual Studio / NuGet.exe will try to do the MSBuild package restore.
See <a href="http://docs.nuget.org/docs/workflows/migrating-to-automatic-package-restore" rel="nofollow noreferrer">this doc</a> for more info.

blocks|key|165303|text|我不确定这背后的科学原理，但在尝试构建一个新下载的Visual+Studio项目，并得到几个MSB3245警告之后，由于缺少引用而导致构建失败，这对我来说很有效：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|165304|在Visual+Studio中，右键单击缺少Packages..."|165305|The引用的项目，然后选择"Manage+NuGet+|unordered-list-item|165306|
|165307|+Manage+NuGet+Packages“对话框将打开。我还看到一条消息很快就会显示出来，然后自动关闭，消息的内容是“retry+Packages..."|165308|165309|Close+the+Manage+NuGet+Packages”对话框(没有实际更改该对话框中的任何内容)，然后重试构建。|165310|165311|编辑:返回到我的TimeSnapper自动截图历史记录(与该工具没有任何关联--我只是一个粉丝)，看起来在管理NuGet包的顶部也显示了一条消息，以及一个“恢复”按钮：“此解决方案中缺少一些NuGet包。单击以从您的在线包源恢复。”|165312|​|165313|📷|atomic|165314|165315|虽然“恢复”对我来说显然是自动发生的，但手动单击该按钮也可以解决包丢失的问题。|165316|entityMap|0|LINK|mutability|MUTABLE|url|http://www.timesnapper.com/|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/a02db36e17c721e987f5fa9c71a4b60d.png|imageAlt^0|1A|7|0|0|0|0|0|0|0|0|8|B|0|0|0|0|1|1|0|0|0^^$0|@$1|2|3|4|5|6|7|1G|8|@$9|1H|A|1I|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1J|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1K|8|@]|D|@]|E|$]]|$1|K|3|L|5|6|7|1L|8|@]|D|@]|E|$]]|$1|M|3|N|5|J|7|1M|8|@]|D|@]|E|$]]|$1|O|3|L|5|6|7|1N|8|@]|D|@]|E|$]]|$1|P|3|Q|5|J|7|1O|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1P|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|1Q|8|@]|D|@$9|1R|A|1S|1|1T]]|E|$]]|$1|U|3|V|5|6|7|1U|8|@]|D|@]|E|$]]|$1|W|3|X|5|Y|7|1V|8|@]|D|@$9|1W|A|1X|1|1Y]]|E|$]]|$1|Z|3|V|5|6|7|1Z|8|@]|D|@]|E|$]]|$1|10|3|11|5|6|7|20|8|@]|D|@]|E|$]]|$1|12|3|-4|5|6|7|21|8|@]|D|@]|E|$]]]|13|$14|$5|15|16|17|E|$18|19]]|1A|$5|1B|16|1C|E|$1D|1E|1F|-4]]]]

I'm not sure about the science behind this, but it worked for me just now after trying to build a freshly-downloaded Visual Studio project, and getting several <code>MSB3245</code> warnings followed by a build failure due to missing references:

<ol>
<li>In Visual Studio, right-click on the project with the missing NuGet references, and select "Manage NuGet Packages..."</li>
<li>The Manage NuGet Packages dialog will open. I also saw a message quickly display and then auto-close, with text along the lines of "Restoring NuGet Packages..."</li>
<li>Close the Manage NuGet Packages dialog (without actually changing anything on the dialog), and retry the build.</li>
</ol>

Edit: Going back in my <a href="http://www.timesnapper.com/" rel="noreferrer">TimeSnapper</a> auto-screenshot history (no affiliation with that tool -- I'm just a fan), it looks like there was also a message displayed at the top of the Manage NuGet Packages, along with a "Restore" button: "Some NuGet Packages are missing from this solution. Click to restore from your online package sources."

<img src="https://i.stack.imgur.com/KNJVS.png" alt="enter image description here">

Although the "Restore" apparently automatically happened for me, clicking that button manually might also do the trick to resolve the missing packages issue.

blocks|key|165318|text|在NuGet恢复丢失的包之前，我必须进入源代码控制并删除packages文件夹中的所有文件(repositories.config除外)。这个想法是使用包还原，而不是将包签入到源代码控制中。如果它在源代码管理中看到这些包，就不会下载它们。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|165319|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had to go into Source Control and delete all of the files in the packages folder (except repositories.config) before NuGet would restore the missing packages. The idea is that you are using package restore rather than checking your packages in to source control. If it sees the packages in source control, it won't download them.

blocks|key|166442|text|我也有同样的问题，也在本地机器上。尽管Package+Manager+Console和nuget.exe+restore+MySolution.sln都报告说一切都已安装，但在解决方案目录中找不到packages文件夹，也没有解析对包的引用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|166443|我检查了所有项目文件，他们希望包放在..\packages文件夹中，这与解决方案文件本身所在的文件夹相同。|166444|我让它工作的方式是运行：|166445|nuget.exe+restore+MySolution.sln+-PackagesDirectory+packages|166446|这将强制nuget.exe将所有包下载到指定的文件夹，并恢复所有引用。|166447|请记住，从NuGet+2.7开始，目标文件不受支持，msbuild假设使用一些集成的方式来恢复包，但它经常失败。|166448|事实上，对于我自己的工作，我更喜欢使用Paket，当你习惯它的时候，它总是工作。它还支持目标文件和创建NuGet包的好方法。|166449|entityMap|0|LINK|mutability|MUTABLE|url|https://fsprojects.github.io/Paket/^0|17|W|2Q|8|0|I|B|0|0|0|1O|0|0|0|J|5|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|17|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|1B|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|1C|8|@]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1D|8|@]|D|@$9|1E|A|1F|1|1G]]|E|$]]|$1|R|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|S|$T|$5|U|V|W|E|$X|Y]]]]

I have the same issue, also on the local machine. Although both Package Manager Console and <code>nuget.exe restore MySolution.sln</code> report that everything is installed, there is no <code>packages</code> folder to be found in the solution directory and no references to packages are being resolved.

I checked all project files and they expect packages to be placed in <code>..\packages</code> folder, the same folder where the solution file itself is located.

The way I made it work is to run:

<code>nuget.exe restore MySolution.sln -PackagesDirectory packages</code>

This forced nuget.exe to download all packages to the specified folder and all references were restored.

Remember that from NuGet 2.7, the targets file is not supported, msbuild suppose to use some integrated way of restoring packages but it fails very often.

In fact, for my own work I prefer using <a href="https://fsprojects.github.io/Paket/" rel="noreferrer">Paket</a>, which always work, when you get used to it. It also supports target files and nice way to create NuGet packages.

blocks|key|2977175|text|我必须卸载nuget包并进行刷新安装，以使其正常工作。这可能会帮助你们中的一些人面对同样的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2977176|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Had to uninstall nuget packages and do a refresh install in order to make it work properly. This might help some of you facing the same issue

blocks|key|2764259|text|我也有同样的问题。在我的例子中，设置<add+key="repositorypath"+value="C:\CxCache"+/>的是父目录中的一个NuGet.Config。所以nuget+restore正在将包复制到一个我不知道的文件夹中。参见NuGet+Configuration+Inheritance。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2764260|删除父目录中的NuGet.Config解决了此问题。|2764261|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.myget.org/docs/how-to/nuget-configuration-inheritance^0|I|1B|22|C|2H|D|3F|V|0|0|7|C|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]]|D|@$9|W|A|X|1|Y]]|E|$]]|$1|F|3|G|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

I was having the same problem. In my case, it was a <code>NuGet.Config</code>in the parent directory that was setting <code>&lt;add key="repositorypath" value="C:\CxCache" /&gt;</code>. So the <code>nuget restore</code> was copying the packages to a folder I didn't know of. See <a href="https://docs.myget.org/docs/how-to/nuget-configuration-inheritance" rel="nofollow noreferrer">NuGet Configuration Inheritance</a>.

Deleting the <code>NuGet.Config</code> in the parent directory solved the problem.

blocks|key|165385|text|在Mac上；我将代码提交给git并删除了所有内容(主文件夹)，然后再次下载。后来工作了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|165386|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

On Mac; I commited the code to git and deleted everything (main folder), then downloaded it again. Worked afterwards.

I have just created a workspace on a new machine, got latest of our project from TFS, enabled NuGet Restore, and I get the following (skimmed-down) output:

<pre><code>1&gt;------ Rebuild All started: Project: Caching, Configuration: Debug Any CPU ------
1&gt; Restoring NuGet packages...
1&gt; To prevent NuGet from downloading packages during build, open the Visual Studio Options dialog, click on the Package Manager node and uncheck 'Allow NuGet to download missing packages'.
1&gt; All packages listed in packages.config are already installed.
1&gt; Caching Framework -&gt; C:\MyProjLocation\Caching\bin\Debug\Caching.dll
2&gt;------ Rebuild All started: Project: Library, Configuration: Debug Any CPU ------
2&gt;C:\Program Files (x86)\MSBuild\12.0\bin\Microsoft.Common.CurrentVersion.targets(1635,5): warning MSB3245: Could not resolve this reference. Could not locate the assembly "LumenWorks.Framework.IO". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
2&gt;C:\MyProjLocation\Library\SomeClass.cs(2,7,2,17): error CS0246: The type or namespace name 'LumenWorks' could not be found (are you missing a using directive or an assembly reference?)

========== Rebuild All: 1 succeeded, 1 failed, 0 skipped ==========
</code></pre>

None of the NuGet packages were restored (there are over 10 - I removed them from the above output for readability sake).

It looks like NuGet is not even trying to restore the packages for the second project (Library).

I have already tried moving the NuGet targets import below the CSharp targets import in the <code>Library.csproj</code> file, <a href="https://stackoverflow.com/questions/13275050/nuget-package-restore-is-not-restoring-packages-on-build">as mentioned here</a>, but it's still not working:

<pre><code>&lt;Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /&gt;
&lt;Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" /&gt;
</code></pre>

I am running the latest version of NuGet (2.7.41101.371) on Visual Studio 2013.

Edit: The <code>packages.config</code> exists and the NuGet Package Manager has the Library project ticked with the correct packages.

NuGet not restoring packages on build

Visual Studio

包管理器

我刚刚在一台新机器上创建了一个工作区，从TFS获取了我们项目的最新信息，启用了NuGet恢复，并得到了以下输出：1>------ Rebuild All started: Project: Caching, Configuration: Debug Any CPU ------1>  Restoring NuGet p...

问NuGet在生成时不恢复包
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