Object::connect: No such slot MainWindowImpl::rowClicked(QModelindex)

[JeanC]

Got it working.
The connect() should come after selection is created.

[jacek]

But where is the damn QItemSelectionModel that goes in there?

QTableView will create one as soon as you assign a model to it with QTableView::setModel(). Therefore you have to create the connection after a call to setModel().