diff --git a/core/modules/comment/migration_templates/d7_comment.yml b/core/modules/comment/migration_templates/d7_comment.yml
old mode 100755
new mode 100644
diff --git a/core/modules/migrate/src/Plugin/Migration.php b/core/modules/migrate/src/Plugin/Migration.php
index d42ee3b..25c61bc 100644
--- a/core/modules/migrate/src/Plugin/Migration.php
+++ b/core/modules/migrate/src/Plugin/Migration.php
@@ -409,10 +409,13 @@ public function checkRequirements() {
       $this->getDestinationPlugin()->checkRequirements();
     }
 
+    if (empty($this->requirements)) {
+      // There are no requirements to check.
+      return;
+    }
     /** @var \Drupal\migrate\Entity\MigrationInterface[] $required_migrations */
     $required_migrations = $this->getMigrationPluginManager()->createInstances($this->requirements);
 
-
     $missing_migrations = array_diff($this->requirements, array_keys($required_migrations));
     // Check if the dependencies are in good shape.
     foreach ($required_migrations as $migration_id => $required_migration) {
diff --git a/core/modules/user/migration_templates/d7_user.yml b/core/modules/user/migration_templates/d7_user.yml
old mode 100755
new mode 100644