protected function getApp()
{
$app = new Application($this->root_dir);
$app->singleton(\Illuminate\Contracts\Http\Kernel::class, \App\Http\Kernel::class);
$app->singleton(\Illuminate\Contracts\Console\Kernel::class, \App\Console\Kernel::class);
$app->singleton(\Illuminate\Contracts\Debug\ExceptionHandler::class, \App\Exceptions\Handler::class);
return $app;
}