c# - 命名空间中不存在类型或命名空间名称 'Exchange'

Question

当我运行我的 ASP.net 应用程序时，我收到此错误:

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. 

编译器错误消息:CS0234:命名空间“Microsoft”中不存在类型或命名空间名称“Exchange”(您是否缺少程序集引用？)

源错误:

   Line 06:  using System.Web.UI.WebControls;
   Line 07:  using System.Data.OleDb;
   Line 08:  using Microsoft.Exchange.WebServices.Data; // error
   Line 09:  using System.Net;
   Line 10:  using System.Data.SqlClient;

Answer 1

确保您的目标框架版本在您的解决方案的所有项目中匹配。我个人在 .NET Framework 4 Client Profile 方面遇到过问题。一旦我将它切换到 .NET Framework 4，它就起作用了。