没有在装配中的上下文类型。 ASP.NET MVC4 [英] No context type found in the assembly. ASP.NET MVC4

问题描述

在这里按照本教程（想顾客，而不是电影，每教程的数据库）：
<一href=\"http://www.asp.net/mvc/tutorials/mvc-4/getting-started-with-aspnet-mvc4/adding-a-new-field-to-the-movie-model-and-table\" rel=\"nofollow\">http://www.asp.net/mvc/tutorials/mvc-4/getting-started-with-aspnet-mvc4/adding-a-new-field-to-the-movie-model-and-table

Was following this tutorial here (wanted a database of customers instead of movies as per tutorial): http://www.asp.net/mvc/tutorials/mvc-4/getting-started-with-aspnet-mvc4/adding-a-new-field-to-the-movie-model-and-table

然而，当我尝试运行迁移命令时遇到以下错误：
上下文类型MvcCustomer.Models.CustomerDbContext'未在程序集MvcVault'发现。

However when I attempt to run migrations commands the following error is encountered: "The context type 'MvcCustomer.Models.CustomerDbContext' was not found in the assembly 'MvcVault'."

这是我的客户模型：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.Entity;
namespace MvcVault.Models
{
    public class Customer
    {
        public int ID { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public DateTime Born { get; set; }
        public int Telephone { get; set; }
        public string Email { get; set; }
    }

    public class CustomerDBContext : DbContext
    {
        public DbSet<Customer> Customers { get; set; }
    }
}

我已经试过了第一迁移命令的各种组合，其中包括：

I've tried various combinations of that first migrations command, including:

启用的迁移-ContextTypeName MvcCustomer.Models.CustomerDbContext

"Enable-Migrations -ContextTypeName MvcCustomer.Models.CustomerDbContext"

启用的迁移-ContextTypeName MVCCustomer.Models.CustomerDbContext

"Enable-Migrations -ContextTypeName MVCCustomer.Models.CustomerDbContext"

不管怎样，我完全新的这一切，并很茫然。当编码了电影模式下的tutes，而且不知道为什么它不工作，如果我改名字，我是能够成功地完成这些教程等等...

Anyway, I'm completely new to all of this and am at a loss. I was able to successfully complete these tutorials when coding up the Movies model following the tutes, and have no idea why its not working if I change the name, etc...

任何帮助将是AP preaciated！衷心感谢你：）

Any help would be appreaciated! Thank you kindly :)

推荐答案

这是迟到的答复，但也许这将帮助别人的未来。

it is late reply but probably it will help someone in future.

从Web.config文件删除连接字符串，如果他们有一个以上的和没有必要的。只保留一个。
尝试在包管理器控制台运行的默认命令。
像启用的迁移或
使用自动迁移使用此命令启用的迁移-EnableAutomaticMigrations 。

Remove connection strings from Web.config IF they are more than one and not needed. Keep only one. Try running default command in Package Manager Console. like Enable-Migrations OR To use auto migrations use this command Enable-Migrations -EnableAutomaticMigrations.

这篇关于没有在装配中的上下文类型。 ASP.NET MVC4的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！