QGraphicsItemPrivate::resolvePalette() error

virtual void resolvePalette(uint inheritedMask)
{
    for (int i = 0; i < children.size(); ++i)
        children.at(i)->d_ptr->resolveFont(inheritedMask);  // resolveFont
}

virtual void resolvePalette(uint inheritedMask)
{
    for (int i = 0; i < children.size(); ++i)
        children.at(i)->d_ptr->resolvePalette(inheritedMask); // resolvePalette
}