我们正在使用的EntityFramework 6 $ C C首先$。我们有一个控制台应用程序，有没有提到的EntityFramework但读取它的App.config的连接字符串。它调用组件传递连接字符串作为参数的DatabaseInitializationUtilities。

We are using EntityFramework 6 with Code First. We have a console app that has no reference to EntityFramework but reads the connection string from its App.config. It calls the DatabaseInitializationUtilities assembly passing the connection string as a parameter.

DatabaseInitializationUtilities具有参照EF6（的EntityFramework和EntityFramework.SqlServer）。它的App.config中是这样的：

DatabaseInitializationUtilities has the reference to EF6 (EntityFramework and EntityFramework.SqlServer). Its App.config is this:

<?xml version="1.0" encoding="utf-8"?>
  <configuration>
     <configSections>
        <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
      <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
     </configSections>
     <system.serviceModel>
         <bindings>
            <basicHttpBinding>
                <binding name="BasicHttpBinding_IAuthentication" />
            </basicHttpBinding>
         </bindings>
         <client>
            <endpoint address="http://localhost/SecurityServices/Authentication.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IAuthentication" contract="SecurityService.IAuthentication" name="BasicHttpBinding_IAuthentication" />
         </client>
      </system.serviceModel>
      <entityFramework>
         <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
            <parameters>
               <parameter value="v11.0" />
            </parameters>
         </defaultConnectionFactory>
         <providers>
            <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
         </providers>
      </entityFramework>
   </configuration>

当执行到行，其中DatabaseInitializationUtilities试图运行一个脚本

When execution reaches a line where DatabaseInitializationUtilities attempts to run a script

context.Database.ExecuteSqlCommand(script.ScriptText)

错误被抛出：

the error is thrown:

没有实体框架提供发现ADO.NET提供与固定名称System.Data.SqlClient的。确保供应商是注册在应用程序配置文件的EntityFramework部分。请参阅http://go.microsoft.com/fwlink/?LinkId=260882了解更多信息。

No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlClient'. Make sure the provider is registered in the 'entityFramework' section of the application config file. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information.

我相信，补救正是我在我的配置文件，所以我不明白这个问题。

I believe the remedy is exactly what I have in my config file, so I don't understand the problem.

注：ReSharper的是bluelining节点和报告 元素的EntityFramework有一个无效的子元素供应商，但部分被的NuGet当我安装EF6注入。

NOTE: Resharper is bluelining the node and reporting "The element 'EntityFramework' has an invalid child element 'providers'. However, the section was injected by NuGet when I installed EF6.

任何想法？

推荐答案

您需要做一个参考，所以它会在书房应用程序路径进行复制。因为稍后将在运行时被引用。所以，你不需要复制任何文件。

You need to make a reference, so it will be copied in den application path. Because later it will be referenced in runtime. So you don't need to copy any files.

private volatile Type _dependency;

public MyClass()
{
    _dependency = typeof(System.Data.Entity.SqlServer.SqlProviderServices);
}