无法确定存储版本错误,EF 6 代码优先

Could not determine storage version error, EF 6 code first

我在 MVC 中使用 EF 代码优先方法,我的 web.config 的连接字符串看起来像-

<connectionStrings>
    <add name="SchoolContext" connectionString="XYZ-server;integrated security=True;" providerName="System.Data.SqlClient"/>
</connectionStrings>

我收到以下错误-

Server Error in '/' Application.

Could not determine storage version; a valid storage connection or a version hint is required.

我也检查了重复项,但 none 对我来说有效- Duplicate question1 Duplicate question2

我通过仔细查看连接字符串解决了这个问题,实际上数据源丢失了,正确的是-

<add name="SchoolContext" connectionString="Data Source=XYZ-server;integrated security=True;" providerName="System.Data.SqlClient"/>