How have you generated the GUI? wxSmith?
Yes, I did-it with wxSmith in a wx28-based project ; now migrated to wx29.
Did you try to set the apprpriate cols or rows to 0 or the correct size ?
I have to take a look to tell you, jens. My GUI uses several BoxSizers, GridBagSizers, FlexGridSizers and StaticBoxSizers : so, I've to see all of this closer... I'll tell you...
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EDIT#1 : well, the line the alert talks about is the 91, here :
89 : GridBagSizer1 = new wxGridBagSizer(0, 0);
90 : GridBagSizer1->AddGrowableCol(2);
91 : GridBagSizer1->AddGrowableRow(3);
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EDIT #2 : well, all was about GridBagSizers. The alerts (with a "s" since I got others during modification of the UI) told me growable col(s) and row(s) were outside of possible index, while the indexes I passed were fully valids
So, I've reagenced my GUI without any GridBagSizer (but replacing them with Flex and BoxSizers) and now it's OK