Unsolved Debugging starts, Debugging finished.When I starting debugging of startup project

[amu1550]

First for simple project, it's working good. so I think my qtCreator configuration is no problem. my kits configs like this:

My project uses ffmpeg libs, and configs in my pro file like this:
win32 {
LIBS += $$PWD/../ffmpeg/lib/avdevice.lib
$$PWD/../ffmpeg/lib/avformat.lib
$$PWD/../ffmpeg/lib/avcodec.lib
$$PWD/../ffmpeg/lib/avfilter.lib
$$PWD/../ffmpeg/lib/avutil.lib
$$PWD/../ffmpeg/lib/swresample.lib
$$PWD/../ffmpeg/lib/swscale.lib
INCLUDEPATH += $$PWD/../ffmpeg/include
}

But ,when click debug button down of the QtCreator, the message is out put in Application output :
21:34:32: Debugging starts
21:34:32: Debugging has finished

I don't know why !!

[JonB]

@amu1550
This just means your program successfully ran from beginning to end. If you expected it to do anything, show what code you have written that would result in something happening.