我已经安装了 Visual Studio 2010 Express，然后是 Reactive Extensions 2.0。当我在调试模式下启动我的应用程序时，会抛出以下异常后使用响应式扩展的部分代码：
The assembly with display name 'System.Reactive.Debugger' failed to load in the 'Load' binding context of the AppDomain with ID 1. The cause of the failure was:
System.IO.FileNotFoundException: Could not load file or assembly
'System.Reactive.Debugger, Version=2.0.20823.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies
问题是我找不到这个 dll - System.Reactive.Debugger。