diff --git a/build/version.props b/build/version.props
index ae5b04f..dcd0b81 100644
--- a/build/version.props
+++ b/build/version.props
@@ -2,7 +2,7 @@
 	<PropertyGroup>
 		<VersionMajor>2</VersionMajor>
 		<VersionMinor>2</VersionMinor>
-		<VersionPatch>2</VersionPatch>
+		<VersionPatch>3</VersionPatch>
 		<VersionQuality></VersionQuality>
 		<VersionPrefix>$(VersionMajor).$(VersionMinor).$(VersionPatch)</VersionPrefix>
 	</PropertyGroup>
diff --git a/samples/Sample.Kafka.MySql/Program.cs b/samples/Sample.Kafka.MySql/Program.cs
index 976b20a..d92eedd 100644
--- a/samples/Sample.Kafka.MySql/Program.cs
+++ b/samples/Sample.Kafka.MySql/Program.cs
@@ -1,6 +1,5 @@
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
-using NLog.Web;
 
 namespace Sample.Kafka.MySql
 {
@@ -14,12 +13,7 @@ namespace Sample.Kafka.MySql
 
         public static IWebHost BuildWebHost(string[] args) =>
             WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>()
-                .ConfigureLogging((hostingContext, builder) =>
-                {
-                    hostingContext.HostingEnvironment.ConfigureNLog("nlog.config");
-                })
-                .UseNLog()
+                .UseStartup<Startup>() 
                 .Build();
     }
 }
\ No newline at end of file
diff --git a/samples/Sample.Kafka.MySql/Sample.Kafka.MySql.csproj b/samples/Sample.Kafka.MySql/Sample.Kafka.MySql.csproj
index 88c0c1d..27a8c6e 100644
--- a/samples/Sample.Kafka.MySql/Sample.Kafka.MySql.csproj
+++ b/samples/Sample.Kafka.MySql/Sample.Kafka.MySql.csproj
@@ -1,30 +1,20 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
     <AssemblyName>Sample.Kafka.MySql</AssemblyName>
     <WarningsAsErrors>NU1701</WarningsAsErrors>
     <NoWarn>NU1701</NoWarn>
   </PropertyGroup>
  
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.6" />
-    <PackageReference Include="MySqlConnector" Version="0.38.0" />
-    <PackageReference Include="NLog.Web.AspNetCore" Version="4.5.2" />
-    <PackageReference Include="zipkin4net" Version="1.2.0" />
-  </ItemGroup>
-  <ItemGroup>
-    <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />
-  </ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.App" />
+    <PackageReference Include="MySqlConnector" Version="0.40.4" />
+  </ItemGroup> 
   <ItemGroup>
     <ProjectReference Include="..\..\src\DotNetCore.CAP.Kafka\DotNetCore.CAP.Kafka.csproj" />
     <ProjectReference Include="..\..\src\DotNetCore.CAP.MySql\DotNetCore.CAP.MySql.csproj" />
     <ProjectReference Include="..\..\src\DotNetCore.CAP\DotNetCore.CAP.csproj" />
-  </ItemGroup>
-  <ItemGroup>
-    <Content Update="nlog.config">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
+  </ItemGroup> 
 
 </Project>
diff --git a/samples/Sample.Kafka.MySql/nlog.config b/samples/Sample.Kafka.MySql/nlog.config
deleted file mode 100644
index 5b91105..0000000
--- a/samples/Sample.Kafka.MySql/nlog.config
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
-      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-      autoReload="true"
-      internalLogLevel="Warn"
-      internalLogFile="logs/internal-nlog.txt">
-
-  <variable name="myLogLayout"
-            value="---------------------------------------------------------------------------${newline}Date：${longdate}    Level：${uppercase:${level}}    User：${aspnet-user-identity}(${aspnet-request-ip})    Logger：${logger}  URL：${aspnet-request-method} ${aspnet-request-url:IncludePort=true:IncludeQueryString=true}  Action：${aspnet-mvc-action} ${newline}Message：${message} ${newline}${onexception:Exception：${exception:format=toString}}" />
-  <extensions>
-    <add assembly="NLog.Web.AspNetCore" />
-  </extensions>
-
-  <!-- define various log targets -->
-  <targets>
-    <!-- write logs to file -->
-    <target name="allfile" xsi:type="File" fileName="logs/cap-all-${shortdate}.log"
-            layout="${myLogLayout}" />
-  </targets>
-
-  <rules>
-    <!--All logs, including from Microsoft-->
-    <logger name="*" minlevel="Debug" writeTo="allfile" /> 
-  </rules>
-</nlog>
\ No newline at end of file
diff --git a/samples/Sample.RabbitMQ.MySql/Program.cs b/samples/Sample.RabbitMQ.MySql/Program.cs
index 3cbbe15..d8e6083 100644
--- a/samples/Sample.RabbitMQ.MySql/Program.cs
+++ b/samples/Sample.RabbitMQ.MySql/Program.cs
@@ -1,6 +1,5 @@
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
-using NLog.Web;
 
 namespace Sample.RabbitMQ.MySql
 {
@@ -13,12 +12,7 @@ namespace Sample.RabbitMQ.MySql
 
         public static IWebHost BuildWebHost(string[] args) =>
             WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>()
-                .ConfigureLogging((hostingContext, builder) =>
-                {
-                    hostingContext.HostingEnvironment.ConfigureNLog("nlog.config");
-                })
-                .UseNLog()
+                .UseStartup<Startup>() 
                 .Build();
     }
 }
diff --git a/samples/Sample.RabbitMQ.MySql/Sample.RabbitMQ.MySql.csproj b/samples/Sample.RabbitMQ.MySql/Sample.RabbitMQ.MySql.csproj
index 5c981a3..5faf15f 100644
--- a/samples/Sample.RabbitMQ.MySql/Sample.RabbitMQ.MySql.csproj
+++ b/samples/Sample.RabbitMQ.MySql/Sample.RabbitMQ.MySql.csproj
@@ -1,31 +1,17 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
-    <NoWarn>1701;1702;1705;3277;</NoWarn>
-    <WarningsAsErrors>NU1605;MSB3277</WarningsAsErrors>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.6" />
-    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="2.0.1" />
-    <PackageReference Include="NLog.Web.AspNetCore" Version="4.5.2" />
-  </ItemGroup>
-  <ItemGroup>
-    <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />
-  </ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.App" />
+    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="2.1.0-rc1-final" />
+  </ItemGroup> 
   <ItemGroup>
     <ProjectReference Include="..\..\src\DotNetCore.CAP.MySql\DotNetCore.CAP.MySql.csproj" />
     <ProjectReference Include="..\..\src\DotNetCore.CAP.RabbitMQ\DotNetCore.CAP.RabbitMQ.csproj" />
     <ProjectReference Include="..\..\src\DotNetCore.CAP\DotNetCore.CAP.csproj" />
   </ItemGroup>
-  <ItemGroup>
-    <Content Update="nlog.config">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
 
 </Project>
diff --git a/samples/Sample.RabbitMQ.MySql/nlog.config b/samples/Sample.RabbitMQ.MySql/nlog.config
deleted file mode 100644
index bba5bea..0000000
--- a/samples/Sample.RabbitMQ.MySql/nlog.config
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
-      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-      autoReload="true"
-      internalLogLevel="Warn"
-      internalLogFile="logs/internal-nlog.txt">
-
-  <variable name="myLogLayout"
-            value="---------------------------------------------------------------------------${newline}Date：${longdate}    Level：${uppercase:${level}}    User：${aspnet-user-identity}(${aspnet-request-ip})    Logger：${logger}  URL：${aspnet-request-method} ${aspnet-request-url:IncludePort=true:IncludeQueryString=true}  Action：${aspnet-mvc-action} ${newline}Message：${message} ${newline}${onexception:Exception：${exception:format=toString}}" />
-  <extensions>
-    <add assembly="NLog.Web.AspNetCore" />
-  </extensions>
-
-  <!-- define various log targets -->
-  <targets>
-    <!-- write logs to file -->
-    <target name="allfile" xsi:type="File" fileName="logs/cap-all-${shortdate}.log"
-            layout="${myLogLayout}" />
-  </targets>
-
-  <rules>
-    <!--All logs, including from Microsoft-->
-    <logger name="*" minlevel="Debug" writeTo="allfile" />
-  </rules>
-</nlog>
\ No newline at end of file