diff --git a/src/views/demo/playground/add-routes/alternates/1.vue b/src/views/demo/playground/add-routes/alternates/1.vue
index 86734738..f99165a0 100644
--- a/src/views/demo/playground/add-routes/alternates/1.vue
+++ b/src/views/demo/playground/add-routes/alternates/1.vue
@@ -2,4 +2,4 @@
   <d2-container type="card">
     <p>src/views/demo/playground/add-routes/alternates/1.vue</p>
   </d2-container>
-</template>
\ No newline at end of file
+</template>
diff --git a/src/views/demo/playground/add-routes/alternates/2.vue b/src/views/demo/playground/add-routes/alternates/2.vue
index 5f5def8c..e03c9f47 100644
--- a/src/views/demo/playground/add-routes/alternates/2.vue
+++ b/src/views/demo/playground/add-routes/alternates/2.vue
@@ -2,4 +2,4 @@
   <d2-container type="card">
     <p>src/views/demo/playground/add-routes/alternates/2.vue</p>
   </d2-container>
-</template>
\ No newline at end of file
+</template>
diff --git a/src/views/demo/playground/add-routes/alternates/3.vue b/src/views/demo/playground/add-routes/alternates/3.vue
index 190a87a0..47670bc1 100644
--- a/src/views/demo/playground/add-routes/alternates/3.vue
+++ b/src/views/demo/playground/add-routes/alternates/3.vue
@@ -2,4 +2,4 @@
   <d2-container type="card">
     <p>src/views/demo/playground/add-routes/alternates/3.vue</p>
   </d2-container>
-</template>
\ No newline at end of file
+</template>
diff --git a/src/views/demo/playground/add-routes/routes.vue b/src/views/demo/playground/add-routes/routes.vue
index b3e7195d..e27018eb 100644
--- a/src/views/demo/playground/add-routes/routes.vue
+++ b/src/views/demo/playground/add-routes/routes.vue
@@ -23,7 +23,6 @@
 <script>
 import { cloneDeep } from 'lodash'
 import { mapState, mapMutations } from 'vuex'
-import router from '@/router'
 import { frameInRoutes } from '@/router/routes'
 import layoutHeaderAside from '@/layout/header-aside'
 export default {