VStudio 2012, Watches don't work for some variables

[wmac]

Hello everyone,

I am trying to debug a C++ program but suddenly the Visual Studio 2012 does not show the values of variables (I am at the red break point in the photo) when I mouse over "some" of the variables (e.g. targetDirection" and nextPIndex).

In addition if I add a watch for these variables, it says the variables are undefined! (even though they are in current debugging scope)

Anyone knows what's wrong?

Thank you

P.S: The snapshot (notice the watch I have added and the break point)

http://i1024.photobucket.com/albums/y307/sarmadys/debug-variablewatch_zps95619170.jpg

[cire]

Are you debugging a release or debug configuration? A release configuration will have optimizations done that may include getting rid of variables that aren't needed and you won't be able to monitor those variables.