与＆QUOT自动创建表;更新数据库..＆QUOT;从型号不起作用 [英] Auto-creating tables with "update-database.." from Model does not work

问题描述

我在ASP.NET MVC编程是新的，我也跟着教程<一个href=\"http://pluralsight.com/training/Player?author=scott-allen&name=aspdotnet-mvc5-fundamentals-m6-ef6&mode=live&clip=0&course=aspdotnet-mvc5-fundamentals\"相对=nofollow>实体框架6从Pluralsight 。

I am new in ASP.NET MVC programming and i have followed the tutorial "Entity Framework 6" from Pluralsight.

我目前坚持多迁移一节。他说，命令

I am currently stuck at the "Multiple Migration" section. He says that the command

update-database -ConfigurationTypeName Books.Web.DataContexts.IdentityMigrations.Configuration

在包管理器控制台会自动创建在服务器资源管理器表。但是，这是行不通的。我得到这样的错误：

in the package-manager-console will automatically create tables in the Server Explorer. But it does not work. I get the an Error like this:

网络相关的或实例特异的错误，而与SQL Server建立连接时出现。服务器没有被发现，或者无法访问它。检查实例名称是否正确，以及SQL Server允许远程连接。错误：50 - 错误在本地数据库中运行。指定的LocalDB实例不存在。

Network related or instance -specific error occurred while establishing a connection to SQL Server . The server was not found , or can not access it . Check if the instance name is correct and that SQL Server allows remote connections. Error: 50 - Error in the Local Database Runtime. The specified LocalDB instance does not exist.

我看过的类似问题的其他问题，但我没能解决它。

I have read other questions with the similar problem but I was not able to fix it.

推荐答案

这真的听起来要么A）你没有一个数据库服务器运行，或者您没有连接到服务器或B）在您的连接字符串您web.config中是错误的。

This really sounds like either A) You don't have a DB server running or you aren't connected to the server or B) Your connection string in your web.config is wrong.

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