将Silverlight 4应用程序迁移到visual studio 2013 Silverlight 5后缺少程序集

Question

我们正在迁移在Visual Studio 2010中开发的Silverlight4应用程序，其中活动目录单点登录到适用于Visual Studio 2013的Silverlight 5。

在更改了一些.dll之类的工具包和数据可视化工具包以及其他dll而不更改框架（4.0）之后它工作正常但是当我将活动目录项目框架从3.5更改为4.0或更高时，它会抛出以下错误：

Error   71  The type name 'RoleProvider' could not be found. This type has been forwarded to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Consider adding a reference to that assembly.    
Error   73  The type name 'MembershipUser' could not be found. This type has been forwarded to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Consider adding a reference to that assembly.  
Error   74  The type name 'MembershipUser' could not be found. This type has been forwarded to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Consider adding a reference to that assembly.  
Error   75  The type name 'MembershipUser' could not be found. This type has been forwarded to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Consider adding a reference to that assembly.  
Error   76  The type name 'MembershipUser' could not be found. This type has been forwarded to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Consider adding a reference to that assembly.  
Error   78  The type name 'MembershipUser' could not be found. This type has been forwarded to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Consider adding a reference to that assembly.  
Error   77  The type name 'MembershipCreateStatus' could not be found. This type has been forwarded to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Consider adding a reference to that assembly.
Error   72  The type 'System.Web.Security.MembershipProvider' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

我尝试更换程序集和命名空间但没有运气。 有没有人遇到过这类问题。 如果你能给我一个解决方案，我将非常感谢你的帮助。 非常感谢你

Answer 1

删除对System.Web.ApplicationServices.dll的现有引用，并引用版本4.0.0.0或更高版本的System.Web.ApplicationServices

您可以在可能看起来像C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319的文件夹中找到它