error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in main.obj

Question

I have read a lot of solutions to my problem but none helped. I tried clean, rebuild. Reinstalled visual 2010 and change from professional to ultimate. But still I dont know

Answer 1

Like all the other answers, I checked my Configuration Properties -> C/C++ -> Preprocessor directives.
In my case I had the NDEBUG correctly defined in Release, but I also had: _SECURE_SCL=1.

Removing that one fixed the issue.