fix: update framework and package version in template botproject (#1939)

* update package version in template

*  add error throw in script

* update netcoreapp version to 3.1

* update schema to 4.7.2 sdk version

* form editor expression err for new schema

* update dotnet sdk in docker

* update dotnet sdk version validation

* update sdk version validation

* refactor: update the validation for new schema (#1988)

* update the validation

* fix some comments

* update some logic

* fix unit test

Co-authored-by: Andy Brown <asbrown002@gmail.com>
Co-authored-by: Dong Lei <donglei@microsoft.com>
Co-authored-by: Long Alan <julong@microsoft.com>
Co-authored-by: Chris Whitten <christopher.whitten@microsoft.com>
Co-authored-by: leileizhang <leilzh@microsoft.com>

BotProject/Templates/CSharp/BotProject.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
     <Compile Remove="Tests\**" />
@@ -13,26 +13,24 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
   </ItemGroup>
-    
+
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <CodeAnalysisRuleSet>BotProject.ruleset</CodeAnalysisRuleSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
     <CodeAnalysisRuleSet>BotProject.ruleset</CodeAnalysisRuleSet>
   </PropertyGroup>
-
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.1.4" />
-    <PackageReference Include="Microsoft.Bot.Builder" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Builder.ApplicationInsights" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Builder.Azure" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Adaptive" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Debugging" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Declarative" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Builder.Integration.ApplicationInsights.Core" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Builder.Integration.AspNet.Core" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Builder.Dialogs" Version="4.7.0-preview-191208-1" />
-    <PackageReference Include="Microsoft.Bot.Connector" Version="4.7.0-preview-191208-1" />
+    <PackageReference Include="Microsoft.Bot.Builder" Version="4.7.2" />
+    <PackageReference Include="Microsoft.Bot.Builder.ApplicationInsights" Version="4.7.2" />
+    <PackageReference Include="Microsoft.Bot.Builder.Azure" Version="4.7.2" />
+    <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Adaptive" Version="4.7.2-preview" />
+    <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Debugging" Version="4.7.2-preview" />
+    <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Declarative" Version="4.7.2-preview" />
+    <PackageReference Include="Microsoft.Bot.Builder.Integration.ApplicationInsights.Core" Version="4.7.2" />
+    <PackageReference Include="Microsoft.Bot.Builder.Integration.AspNet.Core" Version="4.7.2" />
+    <PackageReference Include="Microsoft.Bot.Builder.Dialogs" Version="4.7.2" />
+    <PackageReference Include="Microsoft.Bot.Connector" Version="4.7.2" />
     <PackageReference Include="MSTest.TestFramework" Version="1.4.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.66">
       <PrivateAssets>all</PrivateAssets>

BotProject/Templates/CSharp/Program.cs

@@ -7,6 +7,7 @@
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
 
 namespace Microsoft.Bot.Builder.ComposerBot.Json
 {