QWindowsWindow::setGeometry warning even on a simple program

QWindowsWindow::setGeometry: Unable to set geometry 100x30+257+185 on QWidgetWindow/'QMessageBoxClassWindow'. Resulting geometry:  126x110+257+185 (frame: 8, 31, 8, 8, custom margin: 0, 0, 0, 0, minimum size: 126x110, maximum size: 126x110).

#include "widget.h"
#include <QtWidgets>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    QMessageBox msgBox(QMessageBox::Information,
                       tr("Test"),
                       tr("Welcome!"),
                       QMessageBox::Ok,
                       this);
    msgBox.setInformativeText(tr("abc"));
    // msgBox.setMinimumSize(msgBox.minimumSizeHint());
    msgBox.exec();
}

Widget::~Widget()
{

}