Issue #3437409 ForbidCoreChangesValidator.php

Closes #3437409

automatic_updates_extensions/src/Validator/ForbidCoreChangesValidator.php

@@ -5,6 +5,7 @@ declare(strict_types = 1);
 namespace Drupal\automatic_updates_extensions\Validator;
 
 use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\Core\Url;
 use Drupal\package_manager\ComposerInspector;
 use Drupal\package_manager\Event\PreApplyEvent;
 use Drupal\package_manager\Event\StatusCheckEvent;
@@ -76,7 +77,10 @@ final class ForbidCoreChangesValidator implements EventSubscriberInterface {
 
     }
     if ($error_messages) {
-      $event->addError($error_messages, $this->t('Updating Drupal Core while updating extensions is currently not supported. The following changes were made to the Drupal core packages:'));
+      $event->addError($error_messages, $this->t(
+        'Updating Drupal Core while updating extensions is currently not supported. Use <a href=":url" >this form</a> to update Drupal core. The following changes were made to the Drupal core packages:',
+        [':url' => Url::fromRoute('update.report_update')->toString()]
+      ));
     }
   }