C# 找不到引用的组件“EntityFramework”。
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The referenced component 'EntityFramework' could not be found.
提问by qwertyuywertwer
So im downloading a project at home from work over team foundation server. I download the project and it won't compile because of the error. Warning 2 The referenced component 'EntityFramework' could not be found. Could anyone offer guidance in how I can get entity framework to work. I installed nuget package.
所以我在家里通过团队基础服务器从工作中下载了一个项目。我下载了该项目，但由于错误而无法编译。警告 2 找不到引用的组件“EntityFramework”。任何人都可以提供有关如何使实体框架正常工作的指导。我安装了nuget包。
Thankyou
谢谢
采纳答案by Filippo Vitale
I suggest you to check:
我建议你检查：
1) "Allow NuGet to download missing packages during build"ticked
1)勾选“允许 NuGet 在构建期间下载丢失的包”
Tool --> Options... --> Package Manager --> General
Tool --> Options... --> Package Manager --> General
2) "Project selected"ticked
2）“项目选择”打勾
Solution Explorer --> right-click on the solution/project --> Manage NuPackages
Solution Explorer --> right-click on the solution/project --> Manage NuPackages
3) Rebuild Solution
3)重建方案
EDIT
编辑
For completeness I would like to add that if you are working with a CI system (e.g. Jenkins) or you are using MSBuild on the command line, you need to select Enable NuGet Package Restoreto make it work:
为了完整起见，我想补充一点，如果您正在使用 CI 系统（例如 Jenkins）或者您在命令行上使用 MSBuild，则需要选择启用 NuGet 包还原以使其工作：
Enable NuGet Package Restore http://docs.nuget.org/docs/Workflows/images/enable-package-restore.png
启用 NuGet 包还原 http://docs.nuget.org/docs/Workflows/images/enable-package-restore.png
回答by Bena Waketversa
I had the same problem. I solved it like this:
我有同样的问题。我是这样解决的：
- Choose
References> Right-click >Add Reference ... - Choose
Browsetab - Find your Project Folder>
packages>EntityFramework.4.1.10331.0>lib - Choose
EntityFramework.dll - Click
OK
- 选择
References> 右键单击 >Add Reference ... - 选择
Browse标签 - 找到您的项目文件夹>
packages>EntityFramework.4.1.10331.0>lib - 选择
EntityFramework.dll - 点击
OK
回答by Bena Waketversa
There are good ways suggested by the developers, you may also try this solution to solve your problem.
开发人员建议了一些好方法，您也可以尝试使用此解决方案来解决您的问题。
In your case your project has a reference to the EntityFramework library, but library it self is not available to you project. You may try either the following:
在您的情况下，您的项目引用了 EntityFramework 库，但它本身的库对您的项目不可用。您可以尝试以下任一方法：
- If you have NuGet package manager:
- 如果您有 NuGet 包管理器：
Click on Project-> Manage NuGet Packages. It will open following window.
Find the EntityFramework and click Install.
单击项目-> 管理 NuGet 包。它将打开以下窗口。
找到 EntityFramework 并单击安装。
- 或者，将 EntityFramework 库下载到您的计算机，然后
Right-Click the Prject-> Add References...-> Browse-> Locate your EntityFramework library-> Click OK
右键单击项目-> 添加引用...-> 浏览-> 找到您的 EntityFramework 库-> 单击确定
- 您可以选择使用包管理器来安装库参考，
请查看此链接package-manager-console包管理器控制台（注意：这可能需要 NuGet 包管理器）
回答by Ankur Gupta
I solved this issue by adding Entity Framework reference (Add ref) under C:\ Prog Files\Entity...\Binaries\Entity Framework.dll into my project. Hope this helps!
我通过将 C:\ Prog Files\Entity...\Binaries\Entity Framework.dll 下的实体框架引用（添加引用）添加到我的项目中解决了这个问题。希望这可以帮助！
回答by martinoss
This happened to me, after I moved projectsto a subfolder. Then, the relative paths to the packages folder were not correct anymore.
在我将项目移动到子文件夹后，这发生在我身上。然后，包文件夹的相对路径不再正确。
Got errors like that:
得到这样的错误：
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 ..\packages\NETStandard.Library.2.0.1\build\netstandard2.0\NETStandard.Library.targets. PROJECTNAME D:\VSTS\TEAMPROJECT\src\PROJECTFOLDER\PROJECTNAME.csproj
此项目引用此计算机上缺少的 NuGet 包。使用 NuGet Package Restore 来下载它们。有关详细信息，请参阅http://go.microsoft.com/fwlink/?LinkID=322105。丢失的文件是 ..\packages\NETStandard.Library.2.0.1\build\netstandard2.0\NETStandard.Library.targets。项目名称 D:\VSTS\TEAMPROJECT\src\PROJECTFOLDER\PROJECTNAME.csproj
Fixed it by editing the *.csproj file and corrected the relative paths, in my case from ..\packagesto ..\..\packages
通过编辑 *.csproj 文件并更正相对路径来修复它，在我的情况下从..\packages到..\..\packages
Also make sure to check the paths under
还要确保检查下的路径
<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
