SensorGlobal "TypeError: Object [object Object] has no method 'sensorTypes'"

import QtQuick 2.0
import QtSensors 5.1
import QtSensors 5.1 as Sensors

Rectangle {
    width: 360
    height: 360
    Text {
        id: outTxt
        text: qsTr("Hello World")
        anchors.centerIn: parent
    }
    MouseArea {
        anchors.fill: parent
        onClicked: {
            Qt.quit();
        }
    }

    Accelerometer {
        active: true
        onReadingChanged: {
            outTxt.text = "x: " + reading.x +
                     "\ny: " + reading.y +
                     "\nz: " + reading.z
        }
    }

    Component.onCompleted: {
        var types = Sensors.sensorTypes();
        console.log(types.join(", "));
    }

}