How to use FolderListModel

I am creating a QtQuick application and replacing main.qml with the code below. I am trying to show all files and directories in my home path on Mac OS X system. But nothing appears. Can anyone help figure out what I did wrong? Thanks in advance.

import QtQuick 2.4
import QtQuick.Controls 1.3
import QtQuick.Window 2.2
import QtQuick.Dialogs 1.2
import QtQuick.Layouts 1.1
import Qt.labs.folderlistmodel 2.1

ApplicationWindow {
    visible: true
    title: "Test"
    width: 200
    height: 400

    ListView {
        anchors.fill: parent

        FolderListModel {
            id: folderModel
            showDirs: true
            showDirsFirst: true
            rootFolder: "file:///Users/enderson"
            nameFilters: ["*.*"]
        }

        Component {
            id: fileDelegate
            Text { text: fileName }
        }

        model: folderModel
        delegate: fileDelegate
    }
}

      

        
        
        
      

    

btw: Qt5.5 and .pro file:

TEMPLATE = app

QT += qml quick widgets

SOURCES += main.cpp \
    UiBridge.cpp

RESOURCES += qml.qrc

LIBS += -framework CoreFoundation -framework Foundation

# Additional import path used to resolve QML modules in Qt Creator code model
QML_IMPORT_PATH =

# Default rules for deployment.
include(deployment.pri)