diff --git a/.gitignore b/.gitignore
index b5d8031c..afeea2ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,10 +5,9 @@
 /v2rayN/.vs/
 /v2rayN/v2rayN/bin/Debug/app.publish
 /v2rayN/v2rayN/bin/Debug
-/v2rayN/v2rayN/obj/Debug
-/v2rayN/.vs/v2rayN/DesignTimeBuild
 /v2rayN/v2rayN/bin/Release
-/v2rayN/v2rayN/obj/Release
+/v2rayN/v2rayN/obj/
+/v2rayN/.vs/v2rayN/DesignTimeBuild
 /v2rayN/packages
 .vs/ProjectSettings.json
 .vs/slnx.sqlite
diff --git a/v2rayN/v2rayN/packages.config b/v2rayN/v2rayN/packages.config
deleted file mode 100644
index b17bf183..00000000
--- a/v2rayN/v2rayN/packages.config
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="Google.Protobuf" version="3.11.4" targetFramework="net46" />
-  <package id="Grpc.Core" version="2.27.0" targetFramework="net46" />
-  <package id="Grpc.Core.Api" version="2.27.0" targetFramework="net46" />
-  <package id="Grpc.Tools" version="2.27.0" targetFramework="net46" developmentDependency="true" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net46" />
-  <package id="System.Buffers" version="4.4.0" targetFramework="net46" />
-  <package id="System.Memory" version="4.5.3" targetFramework="net46" />
-  <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.2" targetFramework="net46" />
-  <package id="ZXing.Net" version="0.16.5" targetFramework="net46" />
-</packages>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/v2rayN.csproj b/v2rayN/v2rayN/v2rayN.csproj
index 683b8150..514779ff 100644
--- a/v2rayN/v2rayN/v2rayN.csproj
+++ b/v2rayN/v2rayN/v2rayN.csproj
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\Grpc.Tools.2.27.0\build\Grpc.Tools.props" Condition="Exists('..\packages\Grpc.Tools.2.27.0\build\Grpc.Tools.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -81,22 +80,7 @@
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Google.Protobuf, Version=3.11.4.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604, processorArchitecture=MSIL">
-      <HintPath>..\packages\Google.Protobuf.3.11.4\lib\net45\Google.Protobuf.dll</HintPath>
-    </Reference>
-    <Reference Include="Grpc.Core, Version=2.0.0.0, Culture=neutral, PublicKeyToken=d754f35622e28bad, processorArchitecture=MSIL">
-      <HintPath>..\packages\Grpc.Core.2.27.0\lib\net45\Grpc.Core.dll</HintPath>
-    </Reference>
-    <Reference Include="Grpc.Core.Api, Version=2.0.0.0, Culture=neutral, PublicKeyToken=d754f35622e28bad, processorArchitecture=MSIL">
-      <HintPath>..\packages\Grpc.Core.Api.2.27.0\lib\net45\Grpc.Core.Api.dll</HintPath>
-    </Reference>
-    <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\packages\Newtonsoft.Json.12.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
-    </Reference>
     <Reference Include="System" />
-    <Reference Include="System.Buffers, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Buffers.4.4.0\lib\netstandard1.1\System.Buffers.dll</HintPath>
-    </Reference>
     <Reference Include="System.Core" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -105,24 +89,12 @@
     <Reference Include="System.Drawing" />
     <Reference Include="System.IO.Compression" />
     <Reference Include="System.IO.Compression.FileSystem" />
-    <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Memory.4.5.3\lib\netstandard1.1\System.Memory.dll</HintPath>
-    </Reference>
     <Reference Include="System.Messaging" />
     <Reference Include="System.Net" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Net.Http.WebRequest" />
-    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Runtime.CompilerServices.Unsafe.4.5.2\lib\netstandard1.0\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
-    </Reference>
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml" />
-    <Reference Include="zxing, Version=0.16.5.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
-      <HintPath>..\packages\ZXing.Net.0.16.5\lib\net45\zxing.dll</HintPath>
-    </Reference>
-    <Reference Include="zxing.presentation, Version=0.16.5.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
-      <HintPath>..\packages\ZXing.Net.0.16.5\lib\net45\zxing.presentation.dll</HintPath>
-    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Forms\AddServer4Form.cs">
@@ -320,7 +292,6 @@
     <EmbeddedResource Include="app.config">
       <SubType>Designer</SubType>
     </EmbeddedResource>
-    <None Include="packages.config" />
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
@@ -407,6 +378,25 @@
     <None Include="Resources\notify.png" />
     <Content Include="Resources\privoxy_conf.txt" />
   </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Google.Protobuf">
+      <Version>3.11.4</Version>
+    </PackageReference>
+    <PackageReference Include="Grpc.Core">
+      <Version>2.27.0</Version>
+    </PackageReference>
+    <PackageReference Include="Grpc.Tools">
+      <Version>2.27.0</Version>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Newtonsoft.Json">
+      <Version>12.0.3</Version>
+    </PackageReference>
+    <PackageReference Include="ZXing.Net">
+      <Version>0.16.5</Version>
+    </PackageReference>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PostBuildEvent>copy /y $(SolutionDir)v2rayUpgrade\$(OutDir)* $(TargetDir)
@@ -415,16 +405,6 @@ del $(TargetDir)*.xml $(TargetDir)*.so $(TargetDir)*.dylib
 if not "$(ConfigurationName)" == "Debug" del $(TargetDir)*.pdb</PostBuildEvent>
   </PropertyGroup>
   <Import Project="..\packages\Grpc.Core.2.23.0\build\net45\Grpc.Core.targets" Condition="Exists('..\packages\Grpc.Core.2.23.0\build\net45\Grpc.Core.targets')" />
-  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
-    <PropertyGroup>
-      <ErrorText>这台计算机上缺少此项目引用的 NuGet 程序包。使用“NuGet 程序包还原”可下载这些程序包。有关更多信息，请参见 http://go.microsoft.com/fwlink/?LinkID=322105。缺少的文件是 {0}。</ErrorText>
-    </PropertyGroup>
-    <Error Condition="!Exists('..\packages\Grpc.Tools.2.27.0\build\Grpc.Tools.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Grpc.Tools.2.27.0\build\Grpc.Tools.props'))" />
-    <Error Condition="!Exists('..\packages\Grpc.Tools.2.27.0\build\Grpc.Tools.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Grpc.Tools.2.27.0\build\Grpc.Tools.targets'))" />
-    <Error Condition="!Exists('..\packages\Grpc.Core.2.27.0\build\net45\Grpc.Core.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Grpc.Core.2.27.0\build\net45\Grpc.Core.targets'))" />
-  </Target>
-  <Import Project="..\packages\Grpc.Tools.2.27.0\build\Grpc.Tools.targets" Condition="Exists('..\packages\Grpc.Tools.2.27.0\build\Grpc.Tools.targets')" />
-  <Import Project="..\packages\Grpc.Core.2.27.0\build\net45\Grpc.Core.targets" Condition="Exists('..\packages\Grpc.Core.2.27.0\build\net45\Grpc.Core.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">