public function importSiteAction($packageKey)
    {
        try {
            $this->siteImportService->importFromPackage($packageKey);
            $this->addFlashMessage('The site has been imported.', '', null, [], 1412372266);
        } catch (\Exception $exception) {
            $logMessage = $this->throwableStorage->logThrowable($exception);
            $this->logger->error($logMessage, LogEnvironment::fromMethodName(__METHOD__));
            $this->addFlashMessage('Error: During the import of the "Sites.xml" from the package "%s" an exception occurred: %s', 'Import error', Message::SEVERITY_ERROR, [htmlspecialchars($packageKey), htmlspecialchars($exception->getMessage())], 1412372375);
        }
        $this->unsetLastVisitedNodeAndRedirect('index');
    }