MVC 4实体框架4 POCO：指定的架构是无效

Question

这是我的错误，我似乎无法修复：

Schema specified is not valid. Errors: 
The relationship 'Repository.ForumCategory' was not loaded because the type 'RepositoryModel.ForumCategories' is not available. 

这是我ForumCategory类：

public class ForumCategory 
{ 
    // 
    // Scalar Properties 
    public int Id { get; set; } 

    public string Name { get; set; } 

    public int Order { get; set; } 

    public virtual ICollection<Forum> Forums { get; set; } 
} 

这是我的论坛等级：

public class Forum 
{ 
    // 
    // Scalar Properties 
    public int Id { get; set; } 

    public int CategoryId { get; set; } 

    public string Icon { get; set; } 

    public string Name { get; set; } 

    public string Description { get; set; } 

    public int ThreadCount { get; set; } 

    public int PostCount { get; set; } 

    public virtual Nullable<DateTime> LastPostDate { get; set; } 

    public int Order { get; set; } 

    // 
    // Navigation Properties 
    public virtual ForumCategory Category { get; set; } 
} 

这是我RepositoryContext：

public class RepositoryContext : ObjectContext 
{ 
    private IObjectSet<ForumCategory> _forumCategories; 
    private IObjectSet<Forum> _forums; 

    public SHRepositoryContext() 
     : base("name=Repository", "Repository") 
    { 
     ContextOptions.LazyLoadingEnabled = true; 
     _forumCategories = CreateObjectSet<ForumCategory>(); 
     _forums = CreateObjectSet<Forum>(); 
    } 
    public IObjectSet<ForumCategory> ForumCategories 
    { 
     get { return _forumCategories; } 
    } 

    public IObjectSet<Forum> Forums 
    { 
     get { return _forums; } 
    } 
} 

这是我的实体模型：

真的需要帮助，已经从人们读了几个答案，但没有似乎是相关= \

Answer 1

的问题是：我有一个关联重写我的名字模型中的ForumCategory。解决方案是：我将该关联重命名为Forum_Category，并将该实体重命名为ForumCategory。这解决了我的问题！