无法添加ASP.NET MVC控制器

Question

我是ASP.NET MVC的新手，尽管可以称自己为Web表单领域的程序员。 我现在正在学习MVC。尝试添加具有Entity框架abolities的控制器。 以下是模型类的代码：

Imports System.Data.Entity
Public Class Users
    Public Property ID() As Integer
    Public Property Login() As String
    Public Property Password() As String
    Public Property Avatar() As Image
    Public Property Country() As Integer
    Public Property City() As Integer
    Public Property Phone() As String
    Public Property Email() As String
    Public Property Registered() As Date
End Class
Public Class StopSaleDBContext
    Inherits DbContext
    Public Property Users() As DbSet(Of Users)
End Class

当我添加控制器时出现错误无法从ProjectName.Users检索元数据对象引用未设置为对象实例。

Answer 1

编译项目并重试。