diff --git a/Providers/FreeSql.Provider.Dameng/FreeSql.Provider.Dameng.csproj b/Providers/FreeSql.Provider.Dameng/FreeSql.Provider.Dameng.csproj
index 3e86ee39..0bb8ebf8 100644
--- a/Providers/FreeSql.Provider.Dameng/FreeSql.Provider.Dameng.csproj
+++ b/Providers/FreeSql.Provider.Dameng/FreeSql.Provider.Dameng.csproj
@@ -21,8 +21,8 @@
 	<ItemGroup>
 		<None Include="../../logo.png" Pack="true" PackagePath="\" />
 		<None Include="lib\DmProvider\netstandard2.0\DmProvider.dll" Pack="true" PackagePath="\lib\netstandard2.0\" />
-		<None Include="lib\DmProvider\netcoreapp31\DmProvider.dll" Pack="true" PackagePath="\lib\netcoreapp31\" />
-		<None Include="lib\DmProvider\net40\DmProvider.dll" Pack="true" PackagePath="\lib\net45\" />
+		<None Include="lib\DmProvider\netcoreapp3.1\DmProvider.dll" Pack="true" PackagePath="\lib\netcoreapp3.1\" />
+		<None Include="lib\DmProvider\net45\DmProvider.dll" Pack="true" PackagePath="\lib\net45\" />
 		<None Include="lib\DmProvider\net40\DmProvider.dll" Pack="true" PackagePath="\lib\net40\" />
 		<None Include="lib/**/*.dll">
 			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
@@ -33,6 +33,11 @@
 		<ProjectReference Include="..\..\FreeSql\FreeSql.csproj" />
 	</ItemGroup>
 
+	<ItemGroup >
+		<PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0"  Condition="'$(TargetFramework)' == 'netcoreapp3.1'"/>
+		<PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0"  Condition="'$(TargetFramework)' == 'netstandard2.0'"/>
+	</ItemGroup>
+
 	<ItemGroup>
 		<Reference Include="DmProvider">
 			<HintPath>lib\DmProvider\netstandard2.0\DmProvider.dll</HintPath>
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/DmProvider.1.1.0.11058.nuspec b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/DmProvider.1.1.0.11058.nuspec
new file mode 100644
index 00000000..ed0414f4
--- /dev/null
+++ b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/DmProvider.1.1.0.11058.nuspec
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2012/06/nuspec.xsd">
+  <metadata>
+    <id>DmProvider</id>
+    <version>1.1.0.11058</version>
+    <authors>DM</authors>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>DM .NET PROVIDER</description>
+    <copyright>Copy right(C) DM</copyright>
+    <dependencies>
+      <group targetFramework=".NETFramework4.0" />
+      <group targetFramework=".NETFramework4.5" />
+      <group targetFramework=".NETCoreApp2.0">
+        <dependency id="System.Text.Encoding.CodePages" version="5.0.0" exclude="Build,Analyzers" />
+      </group>
+      <group targetFramework=".NETCoreApp3.1">
+        <dependency id="System.Text.Encoding.CodePages" version="5.0.0" exclude="Build,Analyzers" />
+      </group>
+      <group targetFramework="net5.0" />
+      <group targetFramework=".NETStandard2.0">
+        <dependency id="System.Text.Encoding.CodePages" version="5.0.0" exclude="Build,Analyzers" />
+      </group>
+    </dependencies>
+    <frameworkAssemblies>
+      <frameworkAssembly assemblyName="System.Transactions.dll" targetFramework=".NETFramework4.0, .NETFramework4.5" />
+    </frameworkAssemblies>
+  </metadata>
+</package>
\ No newline at end of file
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/DmProvider.1.1.0.nuspec b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/DmProvider.1.1.0.nuspec
deleted file mode 100644
index 52b9ed57..00000000
--- a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/DmProvider.1.1.0.nuspec
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<package xmlns="http://schemas.microsoft.com/packaging/2012/06/nuspec.xsd">
-  <metadata>
-    <id>DmProvider</id>
-    <version>1.1.0</version>
-    <authors>DM</authors>
-    <owners>DM</owners>
-    <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <description>DM .NET PROVIDER</description>
-    <copyright>Copy right(C) DM</copyright>
-    <dependencies>
-      <group targetFramework=".NETFramework2.0" />
-      <group targetFramework=".NETStandard2.0">
-        <dependency id="System.Text.Encoding.CodePages" version="4.4.0" exclude="Build,Analyzers" />
-      </group>
-    </dependencies>
-    <frameworkAssemblies>
-      <frameworkAssembly assemblyName="System.Transactions" targetFramework=".NETFramework2.0" />
-    </frameworkAssemblies>
-  </metadata>
-</package>
\ No newline at end of file
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/DmProvider.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/DmProvider.dll
index a66f4386..40eba0db 100644
Binary files a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/DmProvider.dll and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/DmProvider.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/en/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/en/DmProvider.resources.dll
index 4d167724..a0430be3 100644
Binary files a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/en/DmProvider.resources.dll and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/en/DmProvider.resources.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/zh-CN/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/zh-CN/DmProvider.resources.dll
index 96e6f539..cc4af248 100644
Binary files a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/zh-CN/DmProvider.resources.dll and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net40/zh-CN/DmProvider.resources.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/DmProvider.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/DmProvider.dll
new file mode 100644
index 00000000..610cc965
Binary files /dev/null and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/DmProvider.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/en/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/en/DmProvider.resources.dll
new file mode 100644
index 00000000..2879b355
Binary files /dev/null and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/en/DmProvider.resources.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/zh-CN/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/zh-CN/DmProvider.resources.dll
new file mode 100644
index 00000000..e91f3858
Binary files /dev/null and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/net45/zh-CN/DmProvider.resources.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/DmProvider.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/DmProvider.dll
new file mode 100644
index 00000000..c1ff52fd
Binary files /dev/null and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/DmProvider.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/en/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/en/DmProvider.resources.dll
new file mode 100644
index 00000000..8691aa78
Binary files /dev/null and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/en/DmProvider.resources.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/zh-CN/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/zh-CN/DmProvider.resources.dll
new file mode 100644
index 00000000..bfe92616
Binary files /dev/null and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp3.1/zh-CN/DmProvider.resources.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/DmProvider.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/DmProvider.dll
deleted file mode 100644
index 7f92f586..00000000
Binary files a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/DmProvider.dll and /dev/null differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/en/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/en/DmProvider.resources.dll
deleted file mode 100644
index 93f83654..00000000
Binary files a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/en/DmProvider.resources.dll and /dev/null differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/zh-CN/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/zh-CN/DmProvider.resources.dll
deleted file mode 100644
index 0777d47d..00000000
Binary files a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netcoreapp31/zh-CN/DmProvider.resources.dll and /dev/null differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/DmProvider.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/DmProvider.dll
index d4db93cf..06a53c76 100644
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diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/en/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/en/DmProvider.resources.dll
index cb0e9488..76efbd19 100644
Binary files a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/en/DmProvider.resources.dll and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/en/DmProvider.resources.dll differ
diff --git a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/zh-CN/DmProvider.resources.dll b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/zh-CN/DmProvider.resources.dll
index fcd77075..4e46b23f 100644
Binary files a/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/zh-CN/DmProvider.resources.dll and b/Providers/FreeSql.Provider.Dameng/lib/DmProvider/netstandard2.0/zh-CN/DmProvider.resources.dll differ