private function copyApp()
    {
        // copy MODELS
        $this->copyFilesFromSource($this->appPath . 'Models', app_path('Models'));

        // copy VIEWS
        // replace
        // @include('titan::
        // @extends('titan::
        // $this->view('titan::

        $source = $this->basePath . "resources" . $this->ds . "views";
        $this->copyFilesFromSource($source, resource_path("views"));

        // copy CONTROLLERS
        $this->copyFilesFromSource($this->appPath . "Controllers",
            app_path("Http{$this->ds}Controllers"));

        // copy RouteServiceProvider
        $this->copyRoutesAndProvider();
    }