.vscode/launch.json

@@ -10,7 +10,7 @@
             "request": "launch",
             "preLaunchTask": "build",
             // If you have changed target frameworks, make sure to update the program path.
-            "program": "${workspaceFolder}/bin/Debug/netcoreapp3.1/contact.dll",
+            "program": "${workspaceFolder}/bin/Debug/net5.0/contact.dll",
             "args": [],
             "cwd": "${workspaceFolder}",
             "stopAtEntry": false,

Program.cs

@@ -1,12 +1,5 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Threading.Tasks;
-using Microsoft.AspNetCore;
+using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Logging;
 
 namespace contact
 {

Startup.cs

@@ -1,11 +1,9 @@
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 
-
 namespace contact
 {
     public class Startup
@@ -22,15 +20,6 @@ namespace contact
         {
             services.AddControllers().AddNewtonsoftJson();
             services.AddRazorPages();
-            // services.Configure<CookiePolicyOptions>(options =>
-            // {
-            //     // This lambda determines whether user consent for non-essential cookies is needed for a given request.
-            //     options.CheckConsentNeeded = context => true;
-            //     options.MinimumSameSitePolicy = SameSiteMode.None;
-            // });
-
-
-            // services.AddMvc();//.SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.

contact.csproj

@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>    
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="3.1.4" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="5.0.0" />
   </ItemGroup>
     <!-- <ItemGroup>
     <PackageReference Include="AWSSDK.S3" Version="3.3.111.9" />