问题描述
我有一个名为申请人简单的类。我尝试添加使用Entity Framework和申请人作为我的模型类的模板控制器，以及一个新的数据环境。
I have a simple class called Applicant. I'm trying to add a template controller using the Entity Framework with Applicant as my model class, and a new data context.
每次我试图创建控制器，我得到一个错误对话框，显示无法检索元数据MyNameSpace.Models.Applicant'。有一个错误发生ScaffoldingConnectionFactory。尝试重建项目。
Every time I try to create the controller, I get an error dialog that says "Unable to retrieve metadata for 'MyNameSpace.Models.Applicant'. There was an error generating 'ScaffoldingConnectionFactory'. Try rebuilding your project."
重建什么都不做。
下面是我的模型类：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
namespace MyNameSpace.Models
{
public class Applicant
{
public int ApplicantId { get; set; }
[Required]
public string FirstName { get; set; }
[Required]
public string LastName { get; set; }
public string MiddleInitial { get; set; }
[Required]
public string Phone { get; set; }
[Required]
public string EmailAddress { get; set; }
[Required]
[DataType(DataType.Date)]
public string DateOfBirth { get; set; }
public virtual Ethnicity Ethnicity { get; set; }
public virtual Race Race { get; set; }
}
public class Ethnicity
{
public int EthnicityId { get; set; }
public string Type { get; set; }
}
public class Race
{
public int RaceId { get; set; }
public string Type { get; set; }
}
}
我觉得我已经错过了一步，但我不能把我的手指上。
I feel like I've missed a step but I can't put my finger on it.
推荐答案
我有同样的问题，不得不同样修复它。
I had the same problem and had to fix it similarly.
我的EF的版本是与新的MVC工具不兼容。从更新的NuGet的EntityFramework，并作出一些更新过时的code之后，一切工作正常。
My version of EF was incompatible with the new MVC tooling. After updating EntityFramework from NuGet, and making a few updates to outdated code, everything is working fine.
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