diff --git a/samples/DashboardDemo/src/DashboardDemo.Web/Pages/Components/NewUserStatisticWidget/NewUserStatisticWidgetScriptContributor.cs b/samples/DashboardDemo/src/DashboardDemo.Web/Pages/Components/NewUserStatisticWidget/NewUserStatisticWidgetScriptContributor.cs
index 4f0bf21369..aacd02e6b0 100644
--- a/samples/DashboardDemo/src/DashboardDemo.Web/Pages/Components/NewUserStatisticWidget/NewUserStatisticWidgetScriptContributor.cs
+++ b/samples/DashboardDemo/src/DashboardDemo.Web/Pages/Components/NewUserStatisticWidget/NewUserStatisticWidgetScriptContributor.cs
@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
-using DashboardDemo.Web.Bundles;
+using DashboardDemo.Web.Bundles;
 using Volo.Abp.AspNetCore.Mvc.UI.Bundling;
 using Volo.Abp.Modularity;
 
diff --git a/samples/DashboardDemo/src/DashboardDemo.Web/Pages/Components/NewUserStatisticWidget/NewUserStatisticWidgetViewComponent.cs b/samples/DashboardDemo/src/DashboardDemo.Web/Pages/Components/NewUserStatisticWidget/NewUserStatisticWidgetViewComponent.cs
index bd24c94686..8cfba2e85b 100644
--- a/samples/DashboardDemo/src/DashboardDemo.Web/Pages/Components/NewUserStatisticWidget/NewUserStatisticWidgetViewComponent.cs
+++ b/samples/DashboardDemo/src/DashboardDemo.Web/Pages/Components/NewUserStatisticWidget/NewUserStatisticWidgetViewComponent.cs
@@ -1,6 +1,4 @@
-using System;
-using System.Threading.Tasks;
-using DashboardDemo.Web.Bundles;
+using DashboardDemo.Web.Bundles;
 using DashboardDemo.Web.Pages.Components.NewUserStatisticWidget;
 using Microsoft.AspNetCore.Mvc;
 using Volo.Abp.AspNetCore.Mvc;
@@ -14,7 +12,7 @@ namespace DashboardDemo.Web.Pages.Components.CountersWidget
         )]
     public class NewUserStatisticWidgetViewComponent : AbpViewComponent
     {
-        public async Task<IViewComponentResult> InvokeAsync()
+        public IViewComponentResult Invoke()
         {
             return View();
         }