diff --git a/.github/workflows/dotnetcore.yml b/.github/workflows/dotnetcore.yml
index abbca6e..497ee89 100644
--- a/.github/workflows/dotnetcore.yml
+++ b/.github/workflows/dotnetcore.yml
@@ -12,7 +12,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@master
       with:
-        dotnet-version: 3.1.101
+        dotnet-version: 3.1.302
     - name: dotnet info
       run: dotnet --info
     - name: dotnet restore
diff --git a/src/JT809.Protocol.Test/JT809.Protocol.Test.csproj b/src/JT809.Protocol.Test/JT809.Protocol.Test.csproj
index cead57d..be4c399 100644
--- a/src/JT809.Protocol.Test/JT809.Protocol.Test.csproj
+++ b/src/JT809.Protocol.Test/JT809.Protocol.Test.csproj
@@ -12,10 +12,10 @@
 
   <ItemGroup>
     <PackageReference Include="JT808" Version="2.2.10" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.4" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.6" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1">
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.2">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
diff --git a/src/JT809.Protocol.Test/JT809SubMessageBody/JT809_0x9200_0x9201Test.cs b/src/JT809.Protocol.Test/JT809SubMessageBody/JT809_0x9200_0x9201Test.cs
new file mode 100644
index 0000000..38c13dd
--- /dev/null
+++ b/src/JT809.Protocol.Test/JT809SubMessageBody/JT809_0x9200_0x9201Test.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Xunit;
+using JT809.Protocol;
+using JT809.Protocol.Extensions;
+using JT809.Protocol.MessageBody;
+using JT809.Protocol.Exceptions;
+using JT809.Protocol.SubMessageBody;
+using JT809.Protocol.Enums;
+using JT809.Protocol.Internal;
+
+namespace JT809.Protocol.Test.JT809SubMessageBody
+{
+    public class JT809_0x9200_0x9201Test
+    {
+        private JT809Serializer JT809_2019_Serializer = new JT809Serializer(new DefaultGlobalConfig() { Version = JT809Version.JTT2019 });
+
+        /// <summary>
+        /// 1078qq群808432702:大兄弟提供的 
+        /// 由于车辆注册信息应答消息0x9201子业务不存在车牌号和颜色需要跳过
+        /// </summary>
+        [Fact]
+        public void Test1()
+        {
+            var bytes = "5B0000002F000004579200000004570101010000000000000000004EBC924F9201000000070400000004000189DA5D".ToHexBytes();
+            JT809Package jT809_0X9200_0X9201 = JT809_2019_Serializer.Deserialize(bytes);
+        }
+
+        /// <summary>
+        /// 1078qq群808432702:大兄弟提供的 
+        /// 由于车辆注册信息应答消息0x9201子业务不存在车牌号和颜色需要跳过
+        /// </summary>
+        [Fact]
+        public void Test2()
+        {
+            var bytes = "5B0000002F000004579200000004570101010000000000000000004EBC924F9201000000070400000004000189DA5D".ToHexBytes();
+            string json = JT809_2019_Serializer.Analyze(bytes);
+        }
+    }
+}
diff --git a/src/JT809.Protocol/JT809.Protocol.csproj b/src/JT809.Protocol/JT809.Protocol.csproj
index 3d0aab5..6d786e1 100644
--- a/src/JT809.Protocol/JT809.Protocol.csproj
+++ b/src/JT809.Protocol/JT809.Protocol.csproj
@@ -112,7 +112,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="4.7.1" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.1.4" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.1.6" />
     <PackageReference Include="System.Text.Json" Version="4.7.2" />
   </ItemGroup>
 
diff --git a/src/JT809.Protocol/MessageBody/JT809_0x9200.cs b/src/JT809.Protocol/MessageBody/JT809_0x9200.cs
index 1e3ba4f..3163447 100644
--- a/src/JT809.Protocol/MessageBody/JT809_0x9200.cs
+++ b/src/JT809.Protocol/MessageBody/JT809_0x9200.cs
@@ -24,11 +24,17 @@ namespace JT809.Protocol.MessageBody
         public void Analyze(ref JT809MessagePackReader reader, Utf8JsonWriter writer, IJT809Config config)
         {
             JT809_0x9200 value = new JT809_0x9200();
-            var virtualHex = reader.ReadVirtualArray(21);
-            value.VehicleNo = reader.ReadString(21);
-            writer.WriteString($"[{virtualHex.ToArray().ToHexString()}]车牌号", value.VehicleNo);
-            value.VehicleColor = (JT809VehicleColorType)reader.ReadByte();
-            writer.WriteString($"[{value.VehicleColor.ToByteValue()}]车牌颜色", value.VehicleColor.ToString());
+            //1078qq群808432702:大兄弟提供的 
+            //由于车辆注册信息应答消息0x9201子业务不存在车牌号和颜色需要跳过
+            var subBusinessType = reader.ReadVirtualUInt16();
+            if (subBusinessType != JT809SubBusinessType.车辆注册信息应答消息.ToUInt16Value())
+            {
+                var virtualHex = reader.ReadVirtualArray(21);
+                value.VehicleNo = reader.ReadString(21);
+                writer.WriteString($"[{virtualHex.ToArray().ToHexString()}]车牌号", value.VehicleNo);
+                value.VehicleColor = (JT809VehicleColorType)reader.ReadByte();
+                writer.WriteString($"[{value.VehicleColor.ToByteValue()}]车牌颜色", value.VehicleColor.ToString());
+            }
             value.SubBusinessType = reader.ReadUInt16();
             writer.WriteString($"[{value.SubBusinessType.ReadNumber()}]子业务类型标识", ((JT809SubBusinessType)value.SubBusinessType).ToString());
             value.DataLength = reader.ReadUInt32();
@@ -57,8 +63,14 @@ namespace JT809.Protocol.MessageBody
         public JT809_0x9200 Deserialize(ref JT809MessagePackReader reader, IJT809Config config)
         {
             JT809_0x9200 value = new JT809_0x9200();
-            value.VehicleNo = reader.ReadString(21);
-            value.VehicleColor = (JT809VehicleColorType)reader.ReadByte();
+            var subBusinessType = reader.ReadVirtualUInt16();
+            //1078qq群808432702:大兄弟提供的 
+            //由于车辆注册信息应答消息0x9201子业务不存在车牌号和颜色需要跳过
+            if (subBusinessType != JT809SubBusinessType.车辆注册信息应答消息.ToUInt16Value())
+            {
+                value.VehicleNo = reader.ReadString(21);
+                value.VehicleColor = (JT809VehicleColorType)reader.ReadByte();
+            }
             value.SubBusinessType = reader.ReadUInt16();
             value.DataLength = reader.ReadUInt32();
             try
@@ -85,8 +97,13 @@ namespace JT809.Protocol.MessageBody
 
         public void Serialize(ref JT809MessagePackWriter writer, JT809_0x9200 value, IJT809Config config)
         {
-            writer.WriteStringPadRight(value.VehicleNo, 21);
-            writer.WriteByte((byte)value.VehicleColor);
+            //1078qq群808432702:大兄弟提供的 
+            //由于车辆注册信息应答消息0x9201子业务不存在车牌号和颜色需要跳过
+            if (value.SubBusinessType != JT809SubBusinessType.车辆注册信息应答消息.ToUInt16Value())
+            {
+                writer.WriteStringPadRight(value.VehicleNo, 21);
+                writer.WriteByte((byte)value.VehicleColor);
+            }
             writer.WriteUInt16(value.SubBusinessType);
             try
             {