Qt in VS does not create an .exe

[Nazgul]

Hello,

I'm trying to compile a Qt file in VS 10 Ultimate, it compiles without any warning, but it does not create a .exe ( at least I could not find it in the files) and when I press f5 (start) it gives me this error:

Unable to start program .....

this application has failed etcetcetc

Google knows nothing for Qt

Thanks,

EDIT: / could be handy
things I installed:
VS 10
Qt Libraries for VS 2008
Qt plugin for VS

Do I need the SDK?