rm netcoreapp31 and some changes

src/Nacos.AspNetCore/Nacos.AspNetCore.csproj

@@ -2,7 +2,7 @@
   <Import Project="../../build/version.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp3.1;net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net8.0</TargetFrameworks>
     <PackageId>nacos-sdk-csharp.AspNetCore</PackageId>
     <VersionPrefix>$(NugetVersion)</VersionPrefix>
     <VersionSuffix></VersionSuffix>
@@ -14,7 +14,7 @@
     <ProjectUrl>https://github.com/nacos-group/nacos-sdk-csharp</ProjectUrl>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <PackageReadmeFile>README.md</PackageReadmeFile>
-    <PackageReleaseNotes>      
+    <PackageReleaseNotes>
     </PackageReleaseNotes>
   </PropertyGroup>
 

src/Nacos/V2/Remote/GRpc/GrpcClient.cs

@@ -149,6 +149,12 @@ private CommonResponse ServerCheck(Grpc.Net.Client.GrpcChannel channel)
                        {
                            try
                            {
+                               if (request is SetupAckRequest)
+                               {
+                                   // there is no connection ready this time
+                                   return;
+                               }
+
                                var response = HandleServerRequest(request);
                                response.RequestId = request.RequestId;
                                await call.RequestStream.WriteAsync(GrpcUtils.Convert(response)).ConfigureAwait(false);

src/Nacos/V2/Remote/RemoteRequestType.cs

@@ -36,6 +36,8 @@ public static class RemoteRequestType
 
         public static readonly string Req_ServerCheck = "ServerCheckRequest";
 
+        public static readonly string Req_SetupAck = "SetupAckRequest";
+
         public static readonly string Req_Config_ReSync = "ConfigReSyncRequest";
 
         public static readonly string Resp_Config_Pubish_Alpha2 = "ConfigPublishResponse";
@@ -68,6 +70,8 @@ public static class RemoteRequestType
 
         public static readonly string Resp_ServerCheck = "ServerCheckResponse";
 
+        public static readonly string Resp_SetupAck = "SetupAckResponse";
+
         public static readonly string Req_PushAck = "PushAckRequest";
 
         public static readonly string Req_ConnectReset = "ConnectResetRequest";
@@ -113,6 +117,8 @@ public static class RemoteRequestType
             { Resp_Naming_NotifySubscriber, typeof(NotifySubscriberResponse) },
             { Req_Naming_BatchInstance, typeof(BatchInstanceRequest) },
             { Resp_Naming_BatchInstance, typeof(BatchInstanceResponse) },
+            { Req_SetupAck, typeof(SetupAckRequest) },
+            { Resp_SetupAck, typeof(SetupAckResponse) },
         };
     }
 }

src/Nacos/V2/Remote/Requests/SetupAckRequest.cs

@@ -0,0 +1,11 @@
+namespace Nacos.V2.Remote.Requests
+{
+    using System.Collections.Generic;
+
+    public class SetupAckRequest : CommonRequest
+    {
+        public Dictionary<string, bool> AbilityTable { get; set; }
+
+        public override string GetRemoteType() => RemoteRequestType.Req_SetupAck;
+    }
+}

src/Nacos/V2/Remote/Responses/SetupAckResponse.cs

@@ -0,0 +1,7 @@
+namespace Nacos.V2.Remote.Responses
+{
+    public class SetupAckResponse : CommonResponse
+    {
+        public override string GetRemoteType() => RemoteRequestType.Resp_SetupAck;
+    }
+}