Application crashes at launch-time

[Salazaar]

well, settingUp() is a bunch of if() clauses.
Probably none of them gets to be true, so nothing happens.

None?? If I, let's say' check checkbox in one group, and second in second grop and if nextStep Button is clicked one if() clause sure returns true and all instructions in if() should be done. But even if is a problem (which I think it isn't a problem) some widgets should be hidden, and we can type any value (even string) to lineEdit, although I have a validator.

In addition make sure you get no signal/slot warnings when you execute the application.

No, I don't have any signal/slots warning when executing application.