'#title' => t('Downloading updates failed:'),
'#items' => $results['errors'],
];
- drupal_set_message(drupal_render($item_list), 'error');
+ drupal_set_message(\Drupal::service('renderer')->render($item_list), 'error');
}
elseif ($success) {
drupal_set_message(t('Updates downloaded successfully.'));