在VS 2008中打开较旧版本的项目时，它将尝试将其转换为与VS 2008兼容的项目.

When you open older version project in VS 2008, it will try and convert it into VS 2008 compatible project.

它不起作用，项目页面也没有出现在解决方案资源管理器中

it not work and also the Pages of the project not apppear in Solution Explorer

转换成功了吗?
如果不是，则错误消息是什么?

Is it converted successfully?
If not, what is the error message?

VS 2008已经对其进行了转换，
但是项目的页面未出现在解决方案资源管理器中
这是错误消息:

VS 2008 convert it already,
But the Page of the project not appear apppear in Solution Explorer
This is the error message:

Server Error in '/TrailReportWebService' Application.
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HTTP Error 403 - Forbidden.

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Version Information: ASP.NET Development Server 9.0.0.0