If you are having problems with Silverlight projects the solution can be fairly simple. According to my experience in many cases debugging symbols are not being loaded due to the new ".xap" files not being deployed to temporary folder (either internal VS Cassini or IIS Express). In this situation full rebuilds or resetting VS settings won't help. The easiest solution is just to delete temporary internet files within your browser. If you are using IE for Silverlight development and testing I would recommend switching on "Delete browsing history on exit" option in order not to have such issues in the future.

我必须手动从注册表中卸载所有。dll实例，并从本地驱动器中卸载所有。dll实例。卸载/重新安装我的应用程序，现在im击中断点!这样做浪费了半天时间:(。

我也有同样的问题，但在VS2013的Web应用程序。对我来说，答案是更新构建配置的解决方案:-

右键单击解决方案并选择属性 选择Debug配置 选择trivet中“Configuration Properties”下的“Configuration” 为每个要调试的项目选中“Build”框

一旦我这样做了，所有的断点都开始工作了。

If you are having problems with Silverlight projects the solution can be fairly simple. According to my experience in many cases debugging symbols are not being loaded due to the new ".xap" files not being deployed to temporary folder (either internal VS Cassini or IIS Express). In this situation full rebuilds or resetting VS settings won't help. The easiest solution is just to delete temporary internet files within your browser. If you are using IE for Silverlight development and testing I would recommend switching on "Delete browsing history on exit" option in order not to have such issues in the future.

在调试/常规设置中禁用“只是我的代码”选项。

这是一个非常有用的帖子，列出了解决这个有害问题的清单。对我来说，有效的方法是切换到IE。我花了一段时间才意识到，因为我已经在使用IE，我已经设置了项目的web属性，以便启动操作是启动扩展程序

C:\Program Files (x86)\Internet Explorer\ iexplorer .exe

使用命令行参数

http://localhost/MyProject (

我需要-private标志来阻止IE缓存我正在处理的swf。从“启动外部程序”切换回“特定页面”修复了“没有符号已加载”的问题。