添加控制器错误无法检索元数据 [英] Add controller error unable to retrieve metadata

问题描述

我想在我的MVC 4应用在VS2012中添加控制器这一形象：

I want to add controller in my MVC 4 application in VS2012 as this image:

型号：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.Entity;

namespace MvcDemo.Models
{
    public class MovieDB
    {
        public int ID { get; set; }
        public string Title { get; set; }
        public string Director { get; set; }
        public DateTime Date { get; set; }
    }
    public class MovieDBContext : DbContext
    {
        public DbSet<MovieDB> Movies { get; set; }
    }
}

连接字符串：

<connectionStrings>

<add name="DefaultConnection" 
connectionString="Data Source=(LocalDb)\v11.0;Initial Catalog=aspnet-MvcDemo-20130315191956;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnet-MvcDemo-20130315191956.mdf"
providerName="System.Data.SqlClient" />

<add name="MovieDBContext"
connectionString="Data Source=|DataDirectory|\Movies.sdf"
providerName="System.Data.SqlServerCe.4.0"/>

</connectionStrings>

点击添加后，出现此错误：

After clicking "add", this error occurs:

unable to retrieve metadata for 'MvcDDemo.Models.MovieDB'.Using the
same DbCompiledModel to create contexts against different type of
database servers is not supported.instead,create a 
separate DbCompiledModel for each type of server being used.

任何建议？

推荐答案

在的Web.config ，设置第二个的providerName 同第一的providerName 并创建控制器后，撤消！

In Web.config, set second providerName same as first providerName and after creating controller, undo that!

从：这里 的

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