问在站点服务器上使用Drupal 8中的'Dropzonejs module‘的’'Media upload‘会出现“无法打开输出流”错误

EN

       * Tests that imported PO files aren't break the UI provided by "views".
   *
   * @throws \Behat\Mink\Exception\ExpectationException
   *
   * @link https://www.drupal.org/project/drupal/issues/2449895
   */
  public function testPoFileImportAndAccessibilityOfFilesOverviewViewsPage() {
    $this->container
      ->get('module_installer')
      ->install(['system', 'user', 'file', 'views']);

    // Create and log in a user that's able to upload/import translations
    // and has an access to the overview of files in a system.
    $this->drupalLogin($this->drupalCreateUser([
      'access administration pages',
      'access files overview',
      'administer languages',
      'translate interface',
    ]));

    // Import a dummy PO file.
    $this->importPoFile($this->getPoFile(), [
      'langcode' => 'fr',
    ]);

    // The problem this test cover is exposed in an exception that is thrown
    // by the "\Drupal\locale\StreamWrapper\TranslationsStream" when "views"
    // module provides a page of files overview. Refer to the issue to find
    // more information.
    $this->drupalGet('admin/content/files');
    $this->assertSession()->statusCodeEquals(200);
  }

   public function importPoFile($contents, array $options = []) {
    $file_system = $this->container->get('file_system');
    $file_path = $file_system->tempnam('temporary://', 'po_') . '.po';
    file_put_contents($file_path, $contents);
    $options['files[file]'] = $file_path;
    $this->drupalPostForm('admin/config/regional/translate/import', $options, 
    t('Import'));
    $file_system->unlink($file_path);
  }