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我刚刚启动了一个使用 EF v5 的新应用程序

我在 SQL Server 中创建了一个没有任何表的数据库。我正在尝试让 EF 从模型代码中创建表，但是当它尝试执行时发生错误：

 c.Database.Initialize(true);

这是错误：

Model compatibility cannot be checked because the database does not contain model metadata. Model compatibility can only be checked for databases created using Code First or Code First Migrations.

我读到添加

modelBuilder.Conventions.Remove<IncludeMetadataConvention>();

到上下文类可能会修复它，但在我的情况下它没有。就故障排除而言，我不确定下一步该去哪里。

问题

我不应该提前创建数据库吗？任何想法将不胜感激！

这是 Global.asax 中的代码

protected void Application_Start()
    {

        Database.SetInitializer(new ClubLocatorInitializer());
        LocatorContext c = new LocatorContext(); 
        c.Database.Initialize(true);


        AreaRegistration.RegisterAllAreas();
        RegisterGlobalFilters(GlobalFilters.Filters);
        RegisterRoutes(RouteTable.Routes);


    }

这是我的上下文类中的代码

using System;
using System.Collections.Generic;
using System.Data.Entity.ModelConfiguration.Conventions;
using System.Linq;
using System.Web;
using System.Data.Entity;
using System.Data.Entity.Infrastructure;
using ClubLocator.Models;
using ClubLocator.Models.ViewModels;

namespace ClubLocator.DAL
{
    public class LocatorContext : DbContext
    {


      public DbSet<Prospect> Prospects { get; set; }

      protected override void OnModelCreating(DbModelBuilder modelBuilder)
      {
          modelBuilder.Conventions.Remove<IncludeMetadataConvention>();
          modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
      }





    }
}

这是我的初始化程序

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Data.Entity.Validation;
using System.Diagnostics;
using System.Linq;
using System.Web;
using ClubLocator.Models;

namespace ClubLocator.DAL
{
    public class ClubLocatorInitializer : DropCreateDatabaseIfModelChanges<LocatorContext>
    {
        protected override void Seed(LocatorContext context)
        {

            var prospect = new List<Prospect>
                              {
                                  new Prospect{


                                          FirstName = "John",
                                          LastName = "Smith",
                                          Email = "jsmith@example.com"
                                  }


                              };
           prospect.ForEach(r => context.Prospects.Add(r));
            context.SaveChanges();


        }
    }
}
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