I am getting this warning and I can’t understand how to avoid it. My suspect is that Vaadin 7 does not allow to assemble bottom up. Here is what I do: I create, say, an horizontal layout and add it some buttons. Then I add this layout to a grid that has ALREADY been added to the UI. At this point I get this message for all components contained in the layout that was added.
Googling for this message, I find many questions, but no answers. Do anybody knows what exactly ti means and how can be avoided?
Thanks.