我试图使用Entity Framework（版本6.1.3）建模以下类

public class BlogPost
{
    public Guid BlogPostId { get; set; }
    public string Slug { get; set; }
    public string Content { get; set; }
    public DateTime Created { get; set; }

    // Navigation
    public virtual ICollection<BlogPostBlogPostLink> RelatedBlogs { get; set;
}

public class BlogPostBlogPostLink
{
    public Guid BlogPostId { get; set; }
    public Guid LinkedBlogPostId { get; set; }
    public int Relevance { get; set; }

    // Navigation
    public virtual BlogPost BlogPost { get; set; }
    public virtual BlogPost LinkedBlogPost { get; set; }
}

这个想法是BlogPost作者可以链接到其他BlogPosts并按相关性顺序分配和排序 .

我遇到的问题是在Entity Framework中映射这些问题 . 这是我试过的......

public class BlogPostMap 
    : EntityTypeConfiguration<BlogPost>
{
    public BlogPostMap()
    {
        ToTable("blog_BlogPost");

        // Primary Key
        HasKey(bp => bp.BlogPostId);

        HasMany(bp => bp.RelatedBlogs)
            .WithMany()
            .Map(m =>
            {
                m.MapLeftKey("BlogPostId");
                m.MapRightKey("LinkedBlogPostId");
                m.ToTable("blog_BlogPostBlogPostLink");
            });
    }
}

public class BlogPostBlogPostLinkMap 
    : EntityTypeConfiguration<BlogPostBlogPostLink>
{
    public BlogPostBlogPostLinkMap()
    {
        ToTable("blog_BlogPostBlogPostLink");

        // Composite Primary Key
        HasKey(bpl => new { bpl.BlogPostId, bpl.LinkedBlogPostId });

        // Properties
        Property(bp => bp.BlogPostId)
            .IsRequired()
            .HasColumnName("BlogPostId");

        Property(bpl => bpl.LinkedBlogPostId)
            .IsRequired()
            .HasColumnName("LinkedBlogPostId");

        // Relationships
        HasRequired(bpl => bpl.BlogPost);
        HasRequired(bpl => bpl.LinkedBlogPost);
    }
}

当我运行代码时，我收到以下错误：

指定的关联外键列'LinkedBlogPostId'无效 . 指定的列数必须与主键列数相匹配.

任何建议/方向将不胜感激 .

entity-framework-6