diff --git a/core/lib/Drupal/Core/Config/ConfigImporter.php b/core/lib/Drupal/Core/Config/ConfigImporter.php
index 715138f..64f7252 100644
--- a/core/lib/Drupal/Core/Config/ConfigImporter.php
+++ b/core/lib/Drupal/Core/Config/ConfigImporter.php
@@ -434,7 +434,7 @@ protected function createExtensionChangelist() {
    * @return array
    *   An array of extension names.
    */
-  protected function getExtensionChangelist($type, $op = NULL) {
+  public function getExtensionChangelist($type, $op = NULL) {
     if ($op) {
       return $this->extensionChangelist[$type][$op];
     }
diff --git a/core/lib/Drupal/Core/EventSubscriber/ConfigImportSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/ConfigImportSubscriber.php
index f17d5bd..10d3978 100644
--- a/core/lib/Drupal/Core/EventSubscriber/ConfigImportSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/ConfigImportSubscriber.php
@@ -8,6 +8,7 @@
 namespace Drupal\Core\EventSubscriber;
 
 use Drupal\Core\Config\Config;
+use Drupal\Core\Config\ConfigImporter;
 use Drupal\Core\Config\ConfigImporterEvent;
 use Drupal\Core\Config\ConfigImportValidateEventSubscriberBase;
 use Drupal\Core\Config\ConfigNameException;
@@ -37,6 +38,83 @@ public function onConfigImporterValidate(ConfigImporterEvent $event) {
         }
       }
     }
+    $config_importer = $event->getConfigImporter();
+    if ($config_importer->getStorageComparer()->getSourceStorage()->exists('core.extension')) {
+      $this->validateModuleInstalls($config_importer);
+      $this->validateThemeInstalls($config_importer);
+      $this->validateDependencies($config_importer);
+    }
+  }
+
+  /**
+   * Validates all modules being installed during a configuration import exist.
+   *
+   * @param ConfigImporter $config_importer
+   *   The configuration importer.
+   */
+  protected function validateModuleInstalls(ConfigImporter $config_importer) {
+    $modules = system_rebuild_module_data();
+    foreach ($config_importer->getExtensionChangelist('module', 'install') as $module) {
+      if (!isset($modules[$module])) {
+        $config_importer->logError($this->t('Unable to install module %module since it does not exist.', array('%module' => $module)));
+      }
+    }
+  }
+
+  /**
+   * Validates all themes being installed during a configuration import exist.
+   *
+   * @param ConfigImporter $config_importer
+   *   The configuration importer.
+   */
+  protected function validateThemeInstalls(ConfigImporter $config_importer) {
+    $themes = \Drupal::service('theme_handler')->rebuildThemeData();
+    foreach ($config_importer->getExtensionChangelist('theme', 'install') as $theme) {
+      if (!isset($themes[$theme])) {
+        $config_importer->logError($this->t('Unable to install theme %theme since it does not exist.', array('%theme' => $theme)));
+      }
+    }
+  }
+
+  /**
+   * Validates configuration being imported does not have unmet dependencies.
+   *
+   * @param ConfigImporter $config_importer
+   *   The configuration importer.
+   */
+  protected function validateDependencies(ConfigImporter $config_importer) {
+    $core_extension = $config_importer->getStorageComparer()->getSourceStorage()->read('core.extension');
+    $existing_dependencies = [
+      'config' => $config_importer->getStorageComparer()->getSourceStorage()->listAll(),
+      'module' => array_keys($core_extension['module']),
+      'theme' => array_keys($core_extension['theme']),
+    ];
+
+    foreach (['create', 'update'] as $op) {
+      foreach ($config_importer->getUnprocessedConfiguration($op) as $name) {
+        $data = $config_importer->getStorageComparer()->getSourceStorage()->read($name);
+        if (isset($data['dependencies']) && isset($data['uuid'])) {
+          $dependencies_to_check = array_intersect_key($data['dependencies'], array_flip(['module', 'theme', 'config']));
+          foreach ($dependencies_to_check as $type => $dependencies) {
+            $diffs = array_diff($dependencies, $existing_dependencies[$type]);
+            if (!empty($diffs)) {
+              switch ($type) {
+                case 'module':
+                  $config_importer->logError($this->t('Configuration %name depends on a module that will not be installed after import.', array('%name' => $name)));
+                  break;
+                case 'theme':
+                  $config_importer->logError($this->t('Configuration %name depends on a theme that will not be installed after import.', array('%name' => $name)));
+                  break;
+                case 'config':
+                  $config_importer->logError($this->t('Configuration %name depends on configuration that will not exist after import.', array('%name' => $name)));
+                  break;
+              }
+            }
+          }
+        }
+      }
+    }
+
   }
 
 }
diff --git a/core/modules/system/src/SystemConfigSubscriber.php b/core/modules/system/src/SystemConfigSubscriber.php
index 765b824..ed412a2 100644
--- a/core/modules/system/src/SystemConfigSubscriber.php
+++ b/core/modules/system/src/SystemConfigSubscriber.php
@@ -7,32 +7,58 @@
 
 namespace Drupal\system;
 
+use Drupal\Core\Config\ConfigEvents;
 use Drupal\Core\Config\ConfigImporterEvent;
-use Drupal\Core\Config\ConfigImportValidateEventSubscriberBase;
-use Drupal\Core\Config\StorageDispatcher;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 /**
  * System Config subscriber.
  */
-class SystemConfigSubscriber extends ConfigImportValidateEventSubscriberBase {
+class SystemConfigSubscriber implements EventSubscriberInterface {
+  use StringTranslationTrait;
 
   /**
    * Checks that the configuration synchronization is valid.
    *
-   * This event listener implements two checks:
-   *   - prevents deleting all configuration.
-   *   - checks that the system.site:uuid's in the source and target match.
+   * This event listener prevents deleting all configuration. If there is
+   * nothing to import then event propagation is stopped because there is no
+   * config import to validate.
    *
    * @param ConfigImporterEvent $event
    *   The config import event.
    */
-  public function onConfigImporterValidate(ConfigImporterEvent $event) {
+  public function onConfigImporterValidateNotEmpty(ConfigImporterEvent $event) {
     $importList = $event->getConfigImporter()->getStorageComparer()->getSourceStorage()->listAll();
     if (empty($importList)) {
       $event->getConfigImporter()->logError($this->t('This import is empty and if applied would delete all of your configuration, so has been rejected.'));
+      $event->stopPropagation();
     }
+  }
+
+  /**
+   * Checks that the configuration synchronization is valid.
+   *
+   * This event listener checks that the system.site:uuid's in the source and
+   * target match.
+   *
+   * @param ConfigImporterEvent $event
+   *   The config import event.
+   */
+  public function onConfigImporterValidateSiteUUID(ConfigImporterEvent $event) {
     if (!$event->getConfigImporter()->getStorageComparer()->validateSiteUuid()) {
       $event->getConfigImporter()->logError($this->t('Site UUID in source storage does not match the target storage.'));
     }
   }
+
+  /**
+   * {@inheritdoc}
+   */
+  static function getSubscribedEvents() {
+    // The empty check has a high priority so that is can stop propagation if
+    // there is no configuration to import.
+    $events[ConfigEvents::IMPORT_VALIDATE][] = array('onConfigImporterValidateNotEmpty', 512);
+    $events[ConfigEvents::IMPORT_VALIDATE][] = array('onConfigImporterValidateSiteUUID', 256);
+    return $events;
+  }
 }