title: QML module not installed error: running Qt app on Embedded Linux
body: <p>I am trying to launch my cross-compiled GUI Qt application on a certain TI board.
  I use this command to launch the application:</p>
  
  <pre><code>QT_DEBUG_PLUGINS=1 QT_PLUGIN_PATH=/root/qt-5.2.1-install/plugins LD_LIBRARY_PATH=/root/qt-5.2.1-install/lib/ ./simple_qml_ui -platform linuxfb
  </code></pre>
  
  <p>Unfortunately the error occurs:</p>
  
  <pre><code>QFactoryLoader::QFactoryLoader() checking directory path "/root/qt_app/styles" ... 
  QFactoryLoader::QFactoryLoader() checking directory path "/root/qt-5.2.1-install/plugins/styles" ... 
  QQmlApplicationEngine failed to load component 
  qrc:/main.qml:3 module "QtQuick.Window" is not installed
  qrc:/main.qml:1 module "QtQuick" is not installed
  qrc:/main.qml:2 module "QtQuick.Controls" is not installed
  qrc:/main.qml:4 module "QtQuick.Dialogs" is not installed
  qrc:/main.qml:3 module "QtQuick.Window" is not installed
  qrc:/main.qml:1 module "QtQuick" is not installed
  qrc:/main.qml:2 module "QtQuick.Controls" is not installed
  qrc:/main.qml:4 module "QtQuick.Dialogs" is not installed
  qrc:/main.qml:3 module "QtQuick.Window" is not installed
  qrc:/main.qml:1 module "QtQuick" is not installed
  qrc:/main.qml:2 module "QtQuick.Controls" is not installed
  qrc:/main.qml:4 module "QtQuick.Dialogs" is not installed
  qrc:/main.qml:3 module "QtQuick.Window" is not installed
  qrc:/main.qml:1 module "QtQuick" is not installed
  qrc:/main.qml:2 module "QtQuick.Controls" is not installed
  qrc:/main.qml:4 module "QtQuick.Dialogs" is not installed
  </code></pre>
  
  <p>Am I missing some important deployment step? How do I fix this?</p>