支持上下文的模型已更改

Question

我已經看到其他答案，但我無法使其工作。我有一個簡單，乾淨的網站有兩種型號：

博客型號：

Imports System.Data.Entity 
Imports System.ComponentModel.DataAnnotations 

Public Class Blog 

    Public Property BlogId() As Integer 

    Public Property Name() As String 
    Public Property Description() As String 
    Public Property DateCreated As Date 

    Public Overridable Property Articles() As ICollection(Of Article) 

End Class 

Public Class BlogDbContext 

    Inherits DbContext 
    Public Property Blogs As DbSet(Of Blog) 

End Class 

文章型號：

Imports System.Data.Entity 
Imports System.ComponentModel.DataAnnotations 

Imports GemcoBlog 

Public Class Article 

    Public Property ArticleId() As Integer 
    Public Property BlogId() As Integer 
    Public Property Title() As String 
    Public Property Body() As String 
    Public Property DateCreated As Date 

Public Overridable Property Blog() As Blog 

End Class 

Public Class ArticleDbContext 
    Inherits DbContext 
    Public Property Articles As DbSet(Of Article) 
    Public Property Blogs As DbSet(Of Blog) 
End Class 

當我添加它創建控制器和視圖控制器，然後運行，我得到這個錯誤：

The model backing the 'ArticleDbContext' context has changed since the database was created. Either manually delete/update the database, or call Database.SetInitializer with an IDatabaseInitializer instance. For example, the DropCreateDatabaseIfModelChanges strategy will automatically delete and recreate the database, and optionally seed it with new data.

Source Error:

Line 12: Line 13: Function Index() As ViewResult Line 14:
Dim articles = db.Articles.Include(Function(a) a.Blog) Line 15:
Return View(articles.ToList()) Line 16: End Function

Source File: C:\Users\darchual\documents\visual studio 2010\Projects\Blog\Blog\Controllers\ArticleController.vb
Line: 14

我該如何解決這個錯誤？

編輯：

我從數據庫中刪除的EdmMetaData表解決了這個。我需要這張桌子嗎？對任何事物都有好處嗎？

謝謝。

Answer 1

解決這個問題對我來說是從數據庫中刪除EdmMetaData表。