I use Qt Creater 2.52 and Mingw 4.4, I have Window 7 and 64bit Operation system,
if I build debug, the program can run, but if I build with release, when run I got

Starting U:\test1-build-desktop-Qt_4_8_3__4_8_3__Release\release\test1.exe...
Cannot mix incompatible Qt library (version 0x40803) with this library (version 0x40800)
Invalid parameter passed to C runtime function.
Invalid parameter passed to C runtime function.

there is window which showed as "microsoft visual C++ runtime library " error window