diff --git a/samples/DashboardDemo/src/DashboardDemo.Application/DashboardDemo.Application.csproj b/samples/DashboardDemo/src/DashboardDemo.Application/DashboardDemo.Application.csproj
index a125c6c5e1..a73ecd99e6 100644
--- a/samples/DashboardDemo/src/DashboardDemo.Application/DashboardDemo.Application.csproj
+++ b/samples/DashboardDemo/src/DashboardDemo.Application/DashboardDemo.Application.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
diff --git a/samples/DashboardDemo/src/DashboardDemo.DbMigrator/DashboardDemo.DbMigrator.csproj b/samples/DashboardDemo/src/DashboardDemo.DbMigrator/DashboardDemo.DbMigrator.csproj
index 5c92b934a5..be7292425f 100644
--- a/samples/DashboardDemo/src/DashboardDemo.DbMigrator/DashboardDemo.DbMigrator.csproj
+++ b/samples/DashboardDemo/src/DashboardDemo.DbMigrator/DashboardDemo.DbMigrator.csproj
@@ -4,14 +4,11 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
     <None Remove="appsettings.json" />
-  </ItemGroup>
-
-  <ItemGroup>
     <Content Include="appsettings.json">
       <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
@@ -19,7 +16,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.2.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="3.0.0-preview9.19423.6" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="2.0.4" />
     <PackageReference Include="Serilog.Sinks.File" Version="4.0.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="3.1.1" />
diff --git a/samples/DashboardDemo/src/DashboardDemo.Domain/DashboardDemo.Domain.csproj b/samples/DashboardDemo/src/DashboardDemo.Domain/DashboardDemo.Domain.csproj
index 3270a18c33..7dd33d22f9 100644
--- a/samples/DashboardDemo/src/DashboardDemo.Domain/DashboardDemo.Domain.csproj
+++ b/samples/DashboardDemo/src/DashboardDemo.Domain/DashboardDemo.Domain.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
diff --git a/samples/DashboardDemo/src/DashboardDemo.EntityFrameworkCore.DbMigrations/DashboardDemo.EntityFrameworkCore.DbMigrations.csproj b/samples/DashboardDemo/src/DashboardDemo.EntityFrameworkCore.DbMigrations/DashboardDemo.EntityFrameworkCore.DbMigrations.csproj
index 082b06c5d2..1b3fb490eb 100644
--- a/samples/DashboardDemo/src/DashboardDemo.EntityFrameworkCore.DbMigrations/DashboardDemo.EntityFrameworkCore.DbMigrations.csproj
+++ b/samples/DashboardDemo/src/DashboardDemo.EntityFrameworkCore.DbMigrations/DashboardDemo.EntityFrameworkCore.DbMigrations.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
@@ -12,7 +12,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.2.6" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="3.0.0-preview9.19423.6" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/DashboardDemo/src/DashboardDemo.EntityFrameworkCore/DashboardDemo.EntityFrameworkCore.csproj b/samples/DashboardDemo/src/DashboardDemo.EntityFrameworkCore/DashboardDemo.EntityFrameworkCore.csproj
index 53f93f3a4b..aea0c73e17 100644
--- a/samples/DashboardDemo/src/DashboardDemo.EntityFrameworkCore/DashboardDemo.EntityFrameworkCore.csproj
+++ b/samples/DashboardDemo/src/DashboardDemo.EntityFrameworkCore/DashboardDemo.EntityFrameworkCore.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
   
diff --git a/samples/DashboardDemo/src/DashboardDemo.HttpApi.Client/DashboardDemo.HttpApi.Client.csproj b/samples/DashboardDemo/src/DashboardDemo.HttpApi.Client/DashboardDemo.HttpApi.Client.csproj
index c93e7e7a40..89717376ed 100644
--- a/samples/DashboardDemo/src/DashboardDemo.HttpApi.Client/DashboardDemo.HttpApi.Client.csproj
+++ b/samples/DashboardDemo/src/DashboardDemo.HttpApi.Client/DashboardDemo.HttpApi.Client.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
diff --git a/samples/DashboardDemo/src/DashboardDemo.HttpApi/DashboardDemo.HttpApi.csproj b/samples/DashboardDemo/src/DashboardDemo.HttpApi/DashboardDemo.HttpApi.csproj
index e68a644128..fb27bdb91c 100644
--- a/samples/DashboardDemo/src/DashboardDemo.HttpApi/DashboardDemo.HttpApi.csproj
+++ b/samples/DashboardDemo/src/DashboardDemo.HttpApi/DashboardDemo.HttpApi.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
diff --git a/samples/DashboardDemo/src/DashboardDemo.Web/DashboardDemo.Web.csproj b/samples/DashboardDemo/src/DashboardDemo.Web/DashboardDemo.Web.csproj
index 17943ee878..b7d55edcc6 100644
--- a/samples/DashboardDemo/src/DashboardDemo.Web/DashboardDemo.Web.csproj
+++ b/samples/DashboardDemo/src/DashboardDemo.Web/DashboardDemo.Web.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
     <RootNamespace>DashboardDemo.Web</RootNamespace>
     <AssetTargetFallback>$(AssetTargetFallback);portable-net45+win8+wp8+wpa81;</AssetTargetFallback>
@@ -12,6 +12,7 @@
     <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
     <PreserveCompilationContext>true</PreserveCompilationContext>
     <MvcRazorExcludeRefAssembliesFromPublish>false</MvcRazorExcludeRefAssembliesFromPublish>
+    <PreserveCompilationReferences>true</PreserveCompilationReferences>
   </PropertyGroup>
 
   <ItemGroup>
@@ -31,12 +32,10 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.App" />
-    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0" PrivateAssets="All" />
     <PackageReference Include="Serilog.AspNetCore" Version="2.1.1" />
     <PackageReference Include="Serilog.Sinks.File" Version="4.0.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="4.0.1" />
-    <PackageReference Include="IdentityServer4.AccessTokenValidation" Version="2.7.0" />
+    <PackageReference Include="IdentityServer4.AccessTokenValidation" Version="3.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/samples/DashboardDemo/src/DashboardDemo.Web/DashboardDemoWebModule.cs b/samples/DashboardDemo/src/DashboardDemo.Web/DashboardDemoWebModule.cs
index ae53dd9150..c599ee0ac4 100644
--- a/samples/DashboardDemo/src/DashboardDemo.Web/DashboardDemoWebModule.cs
+++ b/samples/DashboardDemo/src/DashboardDemo.Web/DashboardDemoWebModule.cs
@@ -4,6 +4,7 @@ using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 using DashboardDemo.EntityFrameworkCore;
 using DashboardDemo.Localization;
 using DashboardDemo.MultiTenancy;
@@ -109,7 +110,7 @@ namespace DashboardDemo.Web
             });
         }
 
-        private void ConfigureVirtualFileSystem(IHostingEnvironment hostingEnvironment)
+        private void ConfigureVirtualFileSystem(IWebHostEnvironment hostingEnvironment)
         {
             if (hostingEnvironment.IsDevelopment())
             {
@@ -186,6 +187,7 @@ namespace DashboardDemo.Web
             }
 
             app.UseVirtualFiles();
+            app.UseRouting();
             app.UseAuthentication();
             app.UseJwtTokenMiddleware();
 
@@ -196,11 +198,12 @@ namespace DashboardDemo.Web
 
             app.UseIdentityServer();
             app.UseAbpRequestLocalization();
-            app.UseSwagger();
-            app.UseSwaggerUI(options =>
-            {
-                options.SwaggerEndpoint("/swagger/v1/swagger.json", "DashboardDemo API");
-            });
+            //Swagger does not support ASP.NET Core 3.0 yet
+            //app.UseSwagger();
+            //app.UseSwaggerUI(options =>
+            //{
+            //    options.SwaggerEndpoint("/swagger/v1/swagger.json", "DashboardDemo API");
+            //});
             app.UseAuditing();
             app.UseMvcWithDefaultRouteAndArea();
         }
diff --git a/samples/DashboardDemo/test/DashboardDemo.Application.Tests/DashboardDemo.Application.Tests.csproj b/samples/DashboardDemo/test/DashboardDemo.Application.Tests/DashboardDemo.Application.Tests.csproj
index fb50c96f63..d9fc57b897 100644
--- a/samples/DashboardDemo/test/DashboardDemo.Application.Tests/DashboardDemo.Application.Tests.csproj
+++ b/samples/DashboardDemo/test/DashboardDemo.Application.Tests/DashboardDemo.Application.Tests.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
   
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/DashboardDemo/test/DashboardDemo.Domain.Tests/DashboardDemo.Domain.Tests.csproj b/samples/DashboardDemo/test/DashboardDemo.Domain.Tests/DashboardDemo.Domain.Tests.csproj
index de3334ff07..83194673d8 100644
--- a/samples/DashboardDemo/test/DashboardDemo.Domain.Tests/DashboardDemo.Domain.Tests.csproj
+++ b/samples/DashboardDemo/test/DashboardDemo.Domain.Tests/DashboardDemo.Domain.Tests.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
@@ -12,7 +12,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/DashboardDemo/test/DashboardDemo.EntityFrameworkCore.Tests/DashboardDemo.EntityFrameworkCore.Tests.csproj b/samples/DashboardDemo/test/DashboardDemo.EntityFrameworkCore.Tests/DashboardDemo.EntityFrameworkCore.Tests.csproj
index ade2357433..55560ebe5f 100644
--- a/samples/DashboardDemo/test/DashboardDemo.EntityFrameworkCore.Tests/DashboardDemo.EntityFrameworkCore.Tests.csproj
+++ b/samples/DashboardDemo/test/DashboardDemo.EntityFrameworkCore.Tests/DashboardDemo.EntityFrameworkCore.Tests.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
@@ -13,9 +13,9 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.1" />
-    <PackageReference Include="Microsoft.Data.Sqlite" Version="2.2.4" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.2.4" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
+    <PackageReference Include="Microsoft.Data.Sqlite" Version="3.0.0-preview9.19423.6" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="3.0.0-preview9.19423.6" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/DashboardDemo/test/DashboardDemo.HttpApi.Client.ConsoleTestApp/DashboardDemo.HttpApi.Client.ConsoleTestApp.csproj b/samples/DashboardDemo/test/DashboardDemo.HttpApi.Client.ConsoleTestApp/DashboardDemo.HttpApi.Client.ConsoleTestApp.csproj
index 5f8aa3e268..372d378fff 100644
--- a/samples/DashboardDemo/test/DashboardDemo.HttpApi.Client.ConsoleTestApp/DashboardDemo.HttpApi.Client.ConsoleTestApp.csproj
+++ b/samples/DashboardDemo/test/DashboardDemo.HttpApi.Client.ConsoleTestApp/DashboardDemo.HttpApi.Client.ConsoleTestApp.csproj
@@ -2,14 +2,11 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
     <None Remove="appsettings.json" />
-  </ItemGroup>
-
-  <ItemGroup>
     <Content Include="appsettings.json">
       <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
diff --git a/samples/DashboardDemo/test/DashboardDemo.TestBase/DashboardDemo.TestBase.csproj b/samples/DashboardDemo/test/DashboardDemo.TestBase/DashboardDemo.TestBase.csproj
index c5e1b6a40d..64a64305c9 100644
--- a/samples/DashboardDemo/test/DashboardDemo.TestBase/DashboardDemo.TestBase.csproj
+++ b/samples/DashboardDemo/test/DashboardDemo.TestBase/DashboardDemo.TestBase.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <RootNamespace>DashboardDemo</RootNamespace>
   </PropertyGroup>
 
@@ -15,7 +15,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
     <PackageReference Include="NSubstitute" Version="4.2.0" />
     <PackageReference Include="Shouldly" Version="3.0.2" />
     <PackageReference Include="xunit" Version="2.4.1" />
diff --git a/samples/DashboardDemo/test/DashboardDemo.Web.Tests/DashboardDemo.Web.Tests.csproj b/samples/DashboardDemo/test/DashboardDemo.Web.Tests/DashboardDemo.Web.Tests.csproj
index 2006a283e1..5bdd1e0926 100644
--- a/samples/DashboardDemo/test/DashboardDemo.Web.Tests/DashboardDemo.Web.Tests.csproj
+++ b/samples/DashboardDemo/test/DashboardDemo.Web.Tests/DashboardDemo.Web.Tests.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <OutputType>Exe</OutputType>
     <AssetTargetFallback>$(AssetTargetFallback);portable-net45+win8+wp8+wpa81;</AssetTargetFallback>
     <RootNamespace>DashboardDemo</RootNamespace>
@@ -14,7 +14,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
     <ProjectReference Include="..\DashboardDemo.Application.Tests\DashboardDemo.Application.Tests.csproj" />
     <ProjectReference Include="..\..\src\DashboardDemo.Web\DashboardDemo.Web.csproj" />
     <ProjectReference Include="..\..\..\..\framework\src\Volo.Abp.AspNetCore.TestBase\Volo.Abp.AspNetCore.TestBase.csproj" />