diff --git a/src/linker.app/App.xaml.cs b/src/linker.app/App.xaml.cs
index 1986fe9f..59d3d27c 100644
--- a/src/linker.app/App.xaml.cs
+++ b/src/linker.app/App.xaml.cs
@@ -1,6 +1,4 @@
-using linker.libs.extends;
-
-namespace linker.app
+namespace linker.app
 {
     public partial class App : Application
     {
@@ -23,18 +21,11 @@ namespace linker.app
 
         private void TaskScheduler_UnobservedTaskException(object sender, UnobservedTaskExceptionEventArgs e)
         {
-            HandleException(e.Exception);
             e.SetObserved();
         }
         private void HandleException(Exception ex)
         {
-            //System.Diagnostics.Debug.WriteLine($"全局异常: {ex}");
-            /*
-            MainThread.BeginInvokeOnMainThread(async () =>
-            {
-                await Application.Current.MainPage.DisplayAlert("错误", $"{ex}", "确定");
-            });
-            */
+            System.Diagnostics.Debug.WriteLine($"全局异常: {ex}");
         }
     }
 }
diff --git a/src/linker.app/MainPage.xaml b/src/linker.app/MainPage.xaml
index 0e55df65..624561f0 100644
--- a/src/linker.app/MainPage.xaml
+++ b/src/linker.app/MainPage.xaml
@@ -2,7 +2,14 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              xmlns:local="clr-namespace:linker.app"
-             x:Class="linker.app.MainPage" BackgroundColor="{DynamicResource PageBackgroundColor}">
+             x:Class="linker.app.MainPage" BackgroundColor="#f4f4f4">
+
+    <FlexLayout  BackgroundColor="#f4f4f4" VerticalOptions="Fill" HorizontalOptions="Fill">
+        <WebView x:Name="webview" BackgroundColor="#f4f4f4" VerticalOptions="Fill" HorizontalOptions="Fill" FlexLayout.Grow="1"></WebView>
+        <AbsoluteLayout BackgroundColor="#f4f4f4" x:Name="LoadingOverlay" HorizontalOptions="Center" VerticalOptions="Center" FlexLayout.Grow="1">
+            <ActivityIndicator Color="#008000"  IsRunning="True"  HorizontalOptions="Center"  VerticalOptions="Center" />
+            <Label Text="启动中"  TextColor="#008000" HorizontalOptions="Center" VerticalOptions="Center" Margin="0,60,0,0" />
+        </AbsoluteLayout >
+    </FlexLayout>
 
-    <WebView x:Name="webview" BackgroundColor="#f4f4f4" VerticalOptions="Fill" HorizontalOptions="Fill"></WebView>
 </ContentPage>
diff --git a/src/linker.app/MainPage.xaml.cs b/src/linker.app/MainPage.xaml.cs
index 50939d5d..a0d2e95c 100644
--- a/src/linker.app/MainPage.xaml.cs
+++ b/src/linker.app/MainPage.xaml.cs
@@ -1,6 +1,5 @@
 
 using linker.app.Services;
-using Microsoft.Maui.Controls.PlatformConfiguration;
 
 namespace linker.app
 {
@@ -10,9 +9,17 @@ namespace linker.app
         {
             InitializeComponent();
 
+            LoadingOverlay.IsVisible = true;
+            webview.IsVisible = false;
             IPlatformApplication.Current.Services.GetService<InitializeService>().OnInitialized += () =>
             {
-                webview.Source = new Uri($"http://127.0.0.1:1804?t={DateTime.Now.Ticks}");
+                MainThread.BeginInvokeOnMainThread(() =>
+                {
+                    LoadingOverlay.IsVisible = false;
+                    webview.IsVisible = true;
+                    webview.Source = new Uri($"http://127.0.0.1:1804?t={DateTime.Now.Ticks}");
+                });
+               
             };
         }
     }
diff --git a/src/linker.web/src/views/full/status/Export.vue b/src/linker.web/src/views/full/status/Export.vue
index 87bbfc98..e7a768e3 100644
--- a/src/linker.web/src/views/full/status/Export.vue
+++ b/src/linker.web/src/views/full/status/Export.vue
@@ -169,12 +169,15 @@ export default {
             state.loading = true;
             saveConfig(json).then((res)=>{
                 state.loading = false;
-                state.show = false;
-                ElMessage.success(t('common.oper'));
-
-                state.saveContent = res;
-                state.showSave = true;
+                if(res){
+                    state.show = false;
+                    ElMessage.success(t('common.oper'));
 
+                    state.saveContent = res;
+                    state.showSave = true;
+                }else{
+                    ElMessage.error(t('common.operFail'));
+                }
             }).catch(()=>{
                 ElMessage.error(t('common.operFail'));
                 state.loading = false;
diff --git a/version.txt b/version.txt
index bbd606c6..c742604c 100644
--- a/version.txt
+++ b/version.txt
@@ -1,5 +1,5 @@
 v1.7.4
-2025-04-25 10:39:50
+2025-04-25 16:08:46
 1. 一些优化
 2. 内置应用层SNAT，用于无法使用系统NetNat的windows系统
 3. 如果你设备很多，请尝试升级其中一个成功重启后再升级其它
\ No newline at end of file