IAppBuilder找不到类型或命名空间(使用PR指令程序集引用丢失) [英] The type or namespace IAppBuilder could not be found(missing using a directive pr an assembly reference)
问题描述
我的工作中,我使用SignalR 2.0.1一个Asp.Net MVC 4应用程序,我映射它使用Owin启动类,它能正常工作在第一。
I am working on an Asp.Net MVC 4 Application in which I am using SignalR 2.0.1 and I Mapped it using Owin Startup class and it worked fine at first.
突然,当我试图重建我的应用程序它说该类型的命名空间 IAppbuilder
找不到。
All of a sudden when I tried to rebuild my app it said that the type are namespace IAppbuilder
could not be found.
以下是我的开始补课
using Microsoft.Owin;
using Owin;
using WhiteBoardApp;
namespace WhiteBoardApp
{
public class Startup
{
public void Configuration(IAppBuilder app)
{
app.MapSignalR();
}
}
}
我已经安装了 Owin
包过了,因为某些原因我无法找到Owin启动类,所以我只是增加了一个普通的类,其中包括所需要的所有引用。
我可以知道我犯了一个错误
I have installed Owin
package too, and for some reasons I could not find Owin Startup class so I just added a normal class and included all the references that are needed.
May I know where I am making a mistake
推荐答案
尝试使用打包管理控制台,并做
Try to use Package Manage Console and do
Update-Package Owin -Reinstall
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