Update to Drupal 8.2.2. For more information, see https://www.drupal.org/project/drupal/releases/8.2.2

core/modules/system/migration_templates/d6_menu.yml

@@ -1,9 +1,8 @@
 # The menu_settings migration is in the menu_ui module.
-id: menu
+id: d6_menu
 label: Menus
 migration_tags:
   - Drupal 6
-  - Drupal 7
 source:
   plugin: menu
 process:

core/modules/system/migration_templates/d7_menu.yml

@@ -0,0 +1,20 @@
+id: d7_menu
+label: Menus
+migration_tags:
+  - Drupal 7
+source:
+  plugin: menu
+process:
+  id:
+    plugin: static_map
+    bypass: true
+    source: menu_name
+    map:
+      main-menu: main
+      management: admin
+      navigation: tools
+      user-menu: account
+  label: title
+  description: description
+destination:
+  plugin: entity:menu