Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

core/modules/locale/config/optional/tour.tour.locale.yml

@@ -1,7 +1,11 @@
-id: locale
-module: locale
-label: 'Translation'
 langcode: en
+status: true
+dependencies:
+  module:
+    - locale
+id: locale
+label: Translation
+module: locale
 routes:
   - route_name: locale.translate_page
 tips:
@@ -11,7 +15,6 @@ tips:
     label: 'User interface translation'
     body: 'This page allows you to translate the user interface or modify existing translations. If you have installed your site initially in English, you must first add another language on the <a href="[site:url]/admin/config/regional/language">Languages page</a>, in order to use this page.'
     weight: 1
-
   locale-language:
     id: locale-language
     plugin: text
@@ -20,16 +23,14 @@ tips:
     weight: 2
     attributes:
       data-id: edit-langcode
-
   locale-search:
     id: locale-search
     plugin: text
-    label: 'Search'
+    label: Search
     body: 'Enter the specific word or sentence you want to translate, you can also write just a part of a word.'
     weight: 3
     attributes:
       data-id: edit-string
-
   locale-filter:
     id: locale-filter
     plugin: text
@@ -38,7 +39,6 @@ tips:
     weight: 4
     attributes:
       data-id: edit-translation
-
   locale-submit:
     id: locale-submit
     plugin: text
@@ -47,16 +47,14 @@ tips:
     weight: 5
     attributes:
       data-id: edit-submit
-
   locale-translate:
     id: locale-translate
     plugin: text
-    label: 'Translate'
+    label: Translate
     body: 'You can write your own translation in the text fields of the right column. Try to figure out in which context the text will be used in order to translate it in the appropriate way.'
     weight: 6
     attributes:
       data-class: js-form-type-textarea
-
   locale-validate:
     id: locale-validate
     plugin: text
@@ -65,13 +63,9 @@ tips:
     weight: 7
     attributes:
       data-id: edit-submit--2
-
   locale-continue:
     id: locale-continue
     plugin: text
     label: 'Continuing on'
     body: 'The translations you have made here will be used on your site''s user interface. If you want to use them on another site or modify them on an external translation editor, you can <a href="[site:url]/admin/config/regional/translate/export">export them</a> to a .po file and <a href="[site:url]/admin/config/regional/translate/import">import them</a> later.'
     weight: 8
-dependencies:
-  module:
-    - locale