diff -u b/core/lib/Drupal/Core/Config/ConfigImportValidateEventSubscriberBase.php b/core/lib/Drupal/Core/Config/ConfigImportValidateEventSubscriberBase.php
--- b/core/lib/Drupal/Core/Config/ConfigImportValidateEventSubscriberBase.php
+++ b/core/lib/Drupal/Core/Config/ConfigImportValidateEventSubscriberBase.php
@@ -16,23 +16,6 @@
 abstract class ConfigImportValidateEventSubscriberBase implements EventSubscriberInterface {
 
   /**
-   * The translation manager.
-   *
-   * @var \Drupal\Core\StringTranslation\TranslationInterface
-   */
-  protected $translationManager;
-
-  /**
-   * Constructs the SystemConfigSubscriber object.
-   *
-   * @param \Drupal\Core\StringTranslation\TranslationInterface $translation_manager
-   *   The translation manager.
-   */
-  public function __construct(TranslationInterface $translation_manager) {
-    $this->translationManager = $translation_manager;
-  }
-
-  /**
    * Checks that the configuration synchronization is valid.
    *
    * @param ConfigImporterEvent $event
@@ -70,5 +53,5 @@
    */
   protected function t($string, array $args = array(), array $options = array()) {
-    return $this->translationManager->translate($string, $args, $options);
+    return \Drupal::translation()->translate($string, $args, $options);
   }
 }