好的，我有:

Visual Studio 2010 RC, W7 x64，启动了一个新的项目类型的Silverlight应用程序。在ASP中托管Silverlight应用程序。NET Web应用程序项目。Silverlight 3.0版。 添加了一个LinqToSQL类，一个WCF服务，一个Winform测试应用程序(解决方案中的项目)和一些类(也作为解决方案中的项目)。

昨天，我突然得到了“断点当前不会被击中”。本文档未加载任何符号。'消息出现在IDE中，但它只影响Web Appliaction，我可以调试Silverlight和Winform应用程序。

我尝试/做了什么来摆脱这条信息:

Reset Visual Studio Settings removed all files in every \Temporary ASP.NET Files Folder (there is one for each 32bit/64bit and for Framework 2.0 and 4.0) tried to debug using Visual Studio Integrated Web server - normally I use IIS, in the project output of the solution I deleted every obj and bin folders in every project folder created a new solution and added all the projects to this new solution deleted the solution suo file created a new ASP.NET Web Application to test if it is a VS-installation issue => I can debug this new project/solution rebooted the machine several times repaired the vs.net installation did an IISReset removed the Web App from IIS used the Create Virtual Directory Button under Project Properties of the Web App to create a new Web App in IIS changed the Framework Version of every project from 3.5 to 4.0 Opened the Solution on my second machine => same behavior crawled Microsoft Connect for bugs / similar issues SPENT 7 HOURS.

这是我人生中第二次这样了。上次我通过删除临时ASP解决了这个问题。NET文件文件夹，但这次我需要你的帮助。