QVBoxLayout and QGridLayout Problem

Code:

---

QGridLayout *grid = new QGridLayout;
    for(int row=0;row<4;row++)
    {
        for(int column =0;column<4;column++)
        {
            grid->addWidget(new LCDRange,row,column);
        }
    }
 
    QVBoxLayout *layout = new QVBoxLayout;
    layout->addWidget(close);
    layout->addWidget(grid);//ERROR
    setLayout(layout);
 
ERROR = no matching function for call to ‘QVBoxLayout::addWidget(QGridLayout*&)’.candidates are: void QBoxLayout::addWidget(QWidget*, int, Qt::Alignment)

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Could someone please tell me how to get rid of this error. Thanks.

The function name is addLayout(...) the addWidget function can add only widgets

Thanks, that worked - but now I have another error

QWidget::setLayout: Attempting to set QLayout "" on grid "grid", which already has a layout on the same line