diff --git a/v2rayN/ServiceLib/Common/Utils.cs b/v2rayN/ServiceLib/Common/Utils.cs
index c6433b6a..f377ff86 100644
--- a/v2rayN/ServiceLib/Common/Utils.cs
+++ b/v2rayN/ServiceLib/Common/Utils.cs
@@ -1,4 +1,3 @@
-using System.Collections.Specialized;
 using System.Security.Principal;
 using CliWrap;
 using CliWrap.Buffered;
diff --git a/v2rayN/ServiceLib/Events/EventChannel.cs b/v2rayN/ServiceLib/Events/EventChannel.cs
index 4e234fc6..35e90b0e 100644
--- a/v2rayN/ServiceLib/Events/EventChannel.cs
+++ b/v2rayN/ServiceLib/Events/EventChannel.cs
@@ -5,6 +5,7 @@ public sealed class EventChannel<T>
     private readonly Signal<T> _signal = new();
     private readonly Lock _gate = new();
     private readonly IObservable<T> _observable;
+
     public EventChannel()
     {
         _observable = _signal.Synchronize(_gate);
diff --git a/v2rayN/ServiceLib/Handler/Fmt/BaseFmt.cs b/v2rayN/ServiceLib/Handler/Fmt/BaseFmt.cs
index 4b6fee41..94a4d25a 100644
--- a/v2rayN/ServiceLib/Handler/Fmt/BaseFmt.cs
+++ b/v2rayN/ServiceLib/Handler/Fmt/BaseFmt.cs
@@ -1,5 +1,3 @@
-using System.Collections.Specialized;
-
 namespace ServiceLib.Handler.Fmt;
 
 public class BaseFmt
diff --git a/v2rayN/ServiceLib/ViewModels/ProfilesSelectViewModel.cs b/v2rayN/ServiceLib/ViewModels/ProfilesSelectViewModel.cs
index f2777d65..4d7e7bb6 100644
--- a/v2rayN/ServiceLib/ViewModels/ProfilesSelectViewModel.cs
+++ b/v2rayN/ServiceLib/ViewModels/ProfilesSelectViewModel.cs
@@ -3,7 +3,7 @@ namespace ServiceLib.ViewModels;
 public partial class ProfilesSelectViewModel : MyReactiveObject, ICloseable
 {
     public event EventHandler? RequestClose;
-    
+
     public Interaction<RxVoid, RxVoid> ProfilesFocusInteraction { get; } = new();
 
     #region private prop
diff --git a/v2rayN/ServiceLib/ViewModels/SubEditViewModel.cs b/v2rayN/ServiceLib/ViewModels/SubEditViewModel.cs
index da97e748..821110a3 100644
--- a/v2rayN/ServiceLib/ViewModels/SubEditViewModel.cs
+++ b/v2rayN/ServiceLib/ViewModels/SubEditViewModel.cs
@@ -9,6 +9,7 @@ public partial class SubEditViewModel : MyReactiveObject, ICloseable
 
     [Reactive]
     public partial string CustomCoreType { get; set; }
+
     [Reactive]
     public partial string PrevProfile { get; set; }
 
diff --git a/v2rayN/v2rayN.Desktop/Common/MacAppUtils.cs b/v2rayN/v2rayN.Desktop/Common/MacAppUtils.cs
index 3273feaf..fe172e04 100644
--- a/v2rayN/v2rayN.Desktop/Common/MacAppUtils.cs
+++ b/v2rayN/v2rayN.Desktop/Common/MacAppUtils.cs
@@ -16,7 +16,7 @@ internal static class MacAppUtils
     public static bool IsWindowMiniaturized(Window window)
         => window.TryGetPlatformHandle() is IMacOSTopLevelPlatformHandle { NSWindow: not 0 } handle
             && objc_msgSend_bool(handle.NSWindow, sel_registerName("isMiniaturized"));
-    
+
     [DllImport(LibObjC)]
     private static extern nint objc_getClass(string name);
 
@@ -29,7 +29,7 @@ internal static class MacAppUtils
     [DllImport(LibObjC, EntryPoint = "objc_msgSend")]
     [return: MarshalAs(UnmanagedType.I1)]
     private static extern bool objc_msgSend_bool(nint receiver, nint selector);
-    
+
     [DllImport(LibObjC, EntryPoint = "objc_msgSend")]
     private static extern void objc_msgSend(nint receiver, nint selector, nint argument);
 }
diff --git a/v2rayN/v2rayN.Desktop/DesignData/DesignData.cs b/v2rayN/v2rayN.Desktop/DesignData/DesignData.cs
index 3b6f2afa..807d1af5 100644
--- a/v2rayN/v2rayN.Desktop/DesignData/DesignData.cs
+++ b/v2rayN/v2rayN.Desktop/DesignData/DesignData.cs
@@ -1,4 +1,3 @@
-using ServiceLib.Models.Entities;
 using System.Diagnostics;
 using v2rayN.Desktop.Manager;
 using v2rayN.Desktop.ViewModels;
diff --git a/v2rayN/v2rayN.Desktop/Views/AddServerWindow.axaml.cs b/v2rayN/v2rayN.Desktop/Views/AddServerWindow.axaml.cs
index a1d5b22d..305bdbb1 100644
--- a/v2rayN/v2rayN.Desktop/Views/AddServerWindow.axaml.cs
+++ b/v2rayN/v2rayN.Desktop/Views/AddServerWindow.axaml.cs
@@ -1,5 +1,4 @@
 using v2rayN.Desktop.Base;
-using v2rayN.Desktop.Common;
 
 namespace v2rayN.Desktop.Views;