Using MenuSeparator leads to: qt5/qml/QtQuick/Controls/Private/MenuContentItem.qml:178: ReferenceError: Acccessible is not defined

import QtQuick 2.5
import QtQuick.Controls 1.4

ApplicationWindow {
    visible: true

    menuBar: MenuBar {
        Menu {
            title: "File"
            MenuSeparator {}
        }
    }

    width: 200
    height: 100
}