Question

我正在使用 VS2012中的EntityFramework Reverse POCO Generator

... VS2012

这是我的连接字符串：

<connectionStrings>
    <add name="Entities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlServerCe.4.0;provider connection string=&quot;data source=C:\SomeDatabase.sdf&quot;" providerName="System.Data.EntityClient" />
  </connectionStrings>

安装了nuget EntityFramework.SqlServerCompact
为Visual Studio安装了Entity Framework 6.1.0工具
将System.Data.Entity添加到我的参考资料

更新了.tt文件以指向我的connectionString，当我保存::

时出现此错误（警告）

警告1正在运行转换：无法加载提供程序＆＃34; System.Data.EntityClient＆＃34; - 无法找到请求的.Net Framework数据提供程序。它可能没有安装。

所以它没有生成任何代码。有什么想法吗？

这里是Database.tt文件的片段：

<#@ include file="EF.Reverse.POCO.Core.ttinclude" #>
<#
    // v2.5.0
    // Please make changes to the settings below.
    // All you have to do is save this file, and the output file(s) is/are generated. Compiling does not regenerate the file(s).

    // Misc settings **********************************************************************************************************************
    // Namespace = ""; // Override the default namespace here
    DbContextName = "MyContext";
    ConnectionStringName = "Entities";  // Searches for this connection string in config files listed below
    ConfigurationClassName = "Configuration"; // Configuration, Mapping, Map, etc. This is appended to the Poco class name to configure the mappings.
    ConfigFilenameSearchOrder = new[] { "app.config", "web.config", "app.config.transform", "web.config.transform" }; // Add more here if required. The config files are searched for in the local project first, then the whole solution second.
    MakeClassesPartial = true;
    ...

Answer 1

找到答案，问题出在ConnectionString

中

应如下：

  <connectionStrings>
    <add name="Entities" connectionString="Data Source=C:\StoreContainer.sdf"
      providerName="Microsoft.SqlServerCe.Client.4.0" />
  </connectionStrings>

Answer 2

我遇到了同样的错误，问题是我在Database.tt文件中拼错了ConnectionStringName 。

#@ include file="EF.Reverse.POCO.Core.ttinclude" #>
<#
// v2.14.3
// Please make changes to the settings below.
// All you have to do is save this file, and the output file(s) is/are generated. Compiling does not regenerate the file(s).

DbContextName = "MyDbContext";
DbContextInterfaceBaseClasses = "IDisposable";
DbContextBaseClass = "DbContext";
ConnectionStringName = "MyDbConnection";   //<--- THIS... I misspelled this..

EF反向POCO生成器：无法加载提供者EntityClient

2 个答案: