diff -u b/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php b/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php
--- b/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php
@@ -556,6 +556,7 @@
    */
   protected function build_filters(&$form, &$form_state) {
     // Find all the fields we are allowed to filter by.
+    module_load_include('inc', 'views_ui', 'admin');
     $fields = views_fetch_fields($this->base_table, 'filter');
 
     $bundles = entity_get_bundles($this->entity_type);
@@ -625,7 +626,7 @@
       'human_name' => $form_state['values']['human_name'],
       'description' => $form_state['values']['description'],
       'base_table' => $this->base_table,
-      'langcode' => language_default(),
+      'langcode' => language_default()->langcode,
     );
 
     $view = entity_create('view', $values);
@@ -822,6 +823,7 @@
       // Figure out the table where $bundle_key lives. It may not be the same as
       // the base table for the view; the taxonomy vocabulary machine_name, for
       // example, is stored in taxonomy_vocabulary, not taxonomy_term_data.
+      module_load_include('inc', 'views_ui', 'admin');
       $fields = views_fetch_fields($this->base_table, 'filter');
       if (isset($fields[$this->base_table . '.' . $bundle_key])) {
         $table = $this->base_table;
only in patch2:
unchanged:
--- /dev/null
+++ b/core/modules/views/lib/Drupal/views/Tests/Wizard/WizardPluginBaseUnitTest.php
@@ -0,0 +1,90 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\views\Tests\Wizard\WizardPluginBaseUnitTest.
+ */
+
+namespace Drupal\views\Tests\Wizard;
+
+use Drupal\Core\Language\Language;
+use Drupal\views\Tests\ViewUnitTestBase;
+use Drupal\views_ui\ViewUI;
+
+/**
+ * Tests the wizard code.
+ *
+ * @see \Drupal\views\Plugin\views\wizard\WizardPluginBase
+ */
+class WizardPluginBaseUnitTest extends ViewUnitTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = array('language', 'system');
+
+  /**
+   * Contains thw wizard plugin manager.
+   *
+   * @var \Drupal\views\Plugin\views\wizard\WizardPluginBase
+   */
+  protected $wizard;
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Wizard Plugin Base',
+      'description' => 'Test the wizard base plugin class',
+      'group' => 'Views Wizard',
+    );
+  }
+
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installSchema('language', 'language');
+    $this->installSchema('system', 'variable');
+
+    $this->wizard = $this->container->get('plugin.manager.views.wizard')->createInstance('standard:views_test_data', array());
+  }
+
+  /**
+   * Tests the creating of a view.
+   *
+   * @see \Drupal\views\Plugin\views\wizard\WizardPluginBase
+   */
+  public function testCreateView() {
+    $form = array();
+    $form_state = array();
+    $form = $this->wizard->build_form($form, $form_state);
+    $random_id = strtolower($this->randomName());
+    $random_human_name = $this->randomName();
+    $random_description = $this->randomName();
+
+    // Add a new language and mark it as default.
+    $language = new Language(array(
+      'langcode' => 'it',
+      'name' => 'Italian',
+      'default' => TRUE,
+    ));
+    language_save($language);
+
+    $form_state['values'] = array(
+      'id' => $random_id,
+      'human_name' => $random_human_name,
+      'description' => $random_description,
+      'base_table' => 'views_test_data',
+    );
+
+    $this->wizard->validateView($form, $form_state);
+    $view = $this->wizard->create_view($form, $form_state);
+    $this->assertTrue($view instanceof ViewUI, 'The created view is a ViewUI object.');
+    $this->assertEqual($view->get('id'), $random_id);
+    $this->assertEqual($view->get('human_name'), $random_human_name);
+    $this->assertEqual($view->get('description'), $random_description);
+    $this->assertEqual($view->get('base_table'), 'views_test_data');
+    $this->assertEqual($view->get('langcode'), 'it');
+  }
+}
+