Deleting a list of child components

Development
4

Ive just found this post Creating and removing components on the fly

(Maybe more appropriately named as a post) and in the answer a user suggests to use an OwnedArray.

So i have tried this and i am still having no luck:

void
PianoRoll::initialiseNotes()
{
    for (auto& gui_note: m_gui_notes)
    {
        removeChildComponent(gui_note);
        gui_note->setVisible(false);
        
    }
    m_gui_notes.clearQuick(true);
    
    for (std::size_t index = 0; index < m_current_sequence.size(); index++)
    {
        m_gui_notes.add(std::make_unique<GuiNote>());
        int x_pos = static_cast<int>(m_current_sequence[index].note_on)/4;
        int width = (static_cast<int>(m_current_sequence[index].note_off)/4) - x_pos;
        int y_pos = (grid_line_height*number_of_midi_note_values) -
                    (grid_line_height * m_current_sequence[index].note_value);
        m_gui_notes[static_cast<int>(index)]->setBounds(x_pos + keyboard_width, y_pos ,width, grid_line_height);
        addAndMakeVisible(m_gui_notes[static_cast<int>(index)]);
    }
}