Qt Creator: how to set debug or release mode -

I am creating C ++ project in QT creator using CMK and my own CMakeLists.txt file. How do I specify whether I want to create debug or release mode? Is this something I have set in Qt Creator, or CMCList?

You must set CMake param "CMAKE_BUILD_TYPE" in the release or debug mode, on it Depends on whether to "release" or "debug"

You will not be able to debug that project without "debug", because the QT debugging symbols will not be found.