diff --git a/demo/js/base/tree/demo.part_tree.js b/demo/js/base/tree/demo.part_tree.js
index f24ff62b5..60bc17f81 100644
--- a/demo/js/base/tree/demo.part_tree.js
+++ b/demo/js/base/tree/demo.part_tree.js
@@ -1,4 +1,5 @@
-import { shortcut, Widget, TreeView, isNull } from "@/core";
+import { shortcut, Widget, isNull } from "@/core";
+import { TreeView } from "@/case";
 
 @shortcut()
 export class Func extends Widget {
diff --git a/demo/js/case/triggers/demo.select_text_trigger.js b/demo/js/case/triggers/demo.select_text_trigger.js
index 771e11f3a..7dc5da582 100644
--- a/demo/js/case/triggers/demo.select_text_trigger.js
+++ b/demo/js/case/triggers/demo.select_text_trigger.js
@@ -1,4 +1,4 @@
-import { shortcut, Widget } from "@/core";
+import { shortcut, Widget, createWidget } from "@/core";
 
 @shortcut()
 export class Func extends Widget {
diff --git a/demo/js/core/abstract/demo.virtual_list.js b/demo/js/core/abstract/demo.virtual_list.js
index fc2a9e4f7..c358d7941 100644
--- a/demo/js/core/abstract/demo.virtual_list.js
+++ b/demo/js/core/abstract/demo.virtual_list.js
@@ -1,4 +1,4 @@
-import { shortcut, Widget } from "@/core";
+import { shortcut, Widget, map, extend } from "@/core";
 
 @shortcut()
 export class Func extends Widget {
@@ -13,9 +13,9 @@ export class Func extends Widget {
                 extend({}, item, {
                     type: "bi.label",
                     height: 30,
-                    text: `${i + 1}.${item.text}`,
+                    text: `${i + 1}.${item.text}`
                 })
-            ),
+            )
         };
     }
 }