"Unable to evaluate expression" and Async CTP

Question

Some time ago I have installed the Visual Studio Async CTP

And today I have installed ASP.NET MVC 3 (not RC).

I start receiving "Unable to evaluate expression" in debug mode.

So I have uninstalled Async CTP, ASP.NET MVC 3 and all related updates but with no results. Would be anybody so kind as to help me figure out?

Example message:

Unable to evaluate expression term 'struct'

Answer 1

Full uninstall all visual studio components helped me.