“Unable to evaluate the expression” in Visual Studio 2012 Debug Mode
问题 My Visual Studio 2012 installation has unexpectedly started to show the message "Unable to evaluate the expression" everywhere where we watch variables in debug mode. I already tried to change some debug settings, as proposed by some fixes, but the problem stays there. Some others fixes recommend us to re-install visual studio, which I wouldn't like to do. What more can we do to fix it ? 回答1: A reset in all my visual studio settings using "tools -> import and export settings" (which allow you