There is no iconName for "contacts"

https://developer.ubuntu.com/api/apps/qml/sdk-15.04/Ubuntu.Components.Page/

On the above link, the sample code:

import QtQuick 2.4
import Ubuntu.Components 1.2
MainView {
    width: units.gu(48)
    height: units.gu(60)
    Page {
        title: i18n.tr("Example page")
        Label {
            anchors.centerIn: parent
            text: i18n.tr("Hello world!")
        }
        head.actions: [
            Action {
                iconName: "search"
                text: i18n.tr("Search")
            },
            Action {
                iconName: "contacts"
                text: i18n.tr("Contacts")
            }
        ]
    }
}

There is no "iconName" for "contacts". Instead, it should be "contact"