c# - 找不到 IAuthenticationManager 的对象引用

Question

我在我的 MVC 应用程序中遇到此错误

The type or namespace name 'IAuthenticationManager' could not be found (are you missing a using directive or an assembly reference?)

以下是我遇到错误的代码

private IAuthenticationManager AuthenticationManager
{
   get
   {
       return HttpContext.GetOwinContext().Authentication;
   }
}

Answer 1

添加对链接中显示的此 DLL 的引用:

https://msdn.microsoft.com/en-us/library/microsoft.owin.security.iauthenticationmanager(v=vs.113).aspx

它来自程序集Microsoft.Owin.dll

1. Check your Nuget Package references if you installed through Nuget
2. If not, install through Nuget package to get the assembly reference. The package name - Microsoft.Owin