.net 4.5 升级后 System.Web.Http 丢失
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System.Web.Http missing after .net 4.5 upgrade
提问by Kev
I've just upgraded my solution to .net 4.5 using Target Framework Migrator, and then the package manager console command:
我刚刚使用Target Framework Migrator将我的解决方案升级到 .net 4.5 ，然后是包管理器控制台命令：
Update-Package -Reinstall -IgnoreDependencies
Update-Package -Reinstall -IgnoreDependencies
In one of my projects I am using:
在我使用的一个项目中：
using System.Web.Http.Controllers;
using System.Web.Http.Filters;
The code uses HttpActionContextand ReflectedHttpActionDescriptor. I notice that System.Web.Httphas been removed from my references, and is no longer available in the Add New Reference window. What's going on?
该代码使用HttpActionContext和ReflectedHttpActionDescriptor。我注意到System.Web.Http已从我的参考文献中删除，并且在“添加新参考文献”窗口中不再可用。这是怎么回事？
回答by Steen T?ttrup
Have you looked in the Extensions part of the "Add new reference", instead of Framework ?
您是否查看了“添加新引用”的扩展部分，而不是框架？
If it's not there, it's in the Microsoft.AspNet.WebApi.Core package on NuGet.
如果它不存在，则它位于 NuGet 上的 Microsoft.AspNet.WebApi.Core 包中。
回答by Ezra Steinmetz
As for VS2017 - as said in the asp.net forumsMicrosoft has moved the namespace to a Nuget package called Web Api Core.
In order to install it you need to typeInstall-Package Microsoft.AspNet.WebApi.Corein the Nuget Package Manager Console.
至于 VS2017 - 正如在asp.net 论坛中所说，微软已将命名空间移至名为Web Api Core的 Nuget 包。为了安装它，您需要输入Install-Package Microsoft.AspNet.WebApi.CoreNuget 包管理器控制台。
回答by Vinay Patel
Just run the following nuget command:
只需运行以下 nuget 命令：
Install-Package Microsoft.AspNet.WebApi.Core
回答by Igor Podolskiy
I do this
我这样做
Update-Package -Reinstall
and it helped to my project be well done
它帮助我的项目做得很好
