diff --git a/packages/@vue/cli-ui/src/App.vue b/packages/@vue/cli-ui/src/App.vue
index bd6c4fb697..dcab4ee4a9 100644
--- a/packages/@vue/cli-ui/src/App.vue
+++ b/packages/@vue/cli-ui/src/App.vue
@@ -27,7 +27,6 @@ export default {
 }
 </script>
 
-
 <style lang="stylus">
 @import "~@vue/ui/dist/vue-ui.css"
 @import "~file-icons-js/css/style.css"
diff --git a/packages/@vue/cli-ui/src/components/ClientAddonComponent.vue b/packages/@vue/cli-ui/src/components/ClientAddonComponent.vue
index f90b929ba2..595156a30e 100644
--- a/packages/@vue/cli-ui/src/components/ClientAddonComponent.vue
+++ b/packages/@vue/cli-ui/src/components/ClientAddonComponent.vue
@@ -8,7 +8,6 @@
   </div>
 </template>
 
-
 <script>
 export default {
   props: {
diff --git a/packages/@vue/cli-ui/src/components/PromptsList.vue b/packages/@vue/cli-ui/src/components/PromptsList.vue
index bc8cecc06b..8305970b62 100644
--- a/packages/@vue/cli-ui/src/components/PromptsList.vue
+++ b/packages/@vue/cli-ui/src/components/PromptsList.vue
@@ -45,9 +45,9 @@ export default {
       const groupMap = {}
       const groups = []
       this.prompts.forEach(prompt => {
-        let group = groups[prompt.group]
+        let group = groupMap[prompt.group]
         if (!group) {
-          group = groups[prompt.group] = {
+          group = groupMap[prompt.group] = {
             id: prompt.group,
             prompts: []
           }
diff --git a/packages/@vue/cli-ui/src/components/TaskItem.vue b/packages/@vue/cli-ui/src/components/TaskItem.vue
index 220826f1be..fbe2b98fde 100644
--- a/packages/@vue/cli-ui/src/components/TaskItem.vue
+++ b/packages/@vue/cli-ui/src/components/TaskItem.vue
@@ -68,7 +68,7 @@ export default {
           id: this.task.id
         }
       })
-    },
+    }
   }
 }
 </script>
diff --git a/packages/@vue/cli-ui/src/components/TerminalView.vue b/packages/@vue/cli-ui/src/components/TerminalView.vue
index 77015119a9..513f4b63a7 100644
--- a/packages/@vue/cli-ui/src/components/TerminalView.vue
+++ b/packages/@vue/cli-ui/src/components/TerminalView.vue
@@ -178,8 +178,6 @@ export default {
     },
 
     async fit () {
-      let parent = this.$el
-      let el = this.$refs.render
       let term = this.$_terminal
       term.element.style.display = 'none'
 
diff --git a/packages/@vue/cli-ui/src/views/ProjectConfigurations.vue b/packages/@vue/cli-ui/src/views/ProjectConfigurations.vue
index a4c3bfe59d..d238ba4d01 100644
--- a/packages/@vue/cli-ui/src/views/ProjectConfigurations.vue
+++ b/packages/@vue/cli-ui/src/views/ProjectConfigurations.vue
@@ -71,4 +71,3 @@ export default {
   .content-view /deep/ > .content
     overflow-y hidden
 </style>
-