I just get started and got a bug

Well,i just installed QT on my new PC and tried test how its work,so i've create simple Hello World console app, which didnt work,some error was. And simplest Qt Widget App,wich gave such error when i tried to Run it(watch screenshoot):

I dont know,mb i missing some downloads,there is too much options when installing Qt,how the hell i might know which absolutely necessary...