Dynamics 365: why I get "Xrm.Sdk WSDL" error for .net6 console client?

Mac OS, .Net6, C# 10.0.

I always created console clients for MS Dynamics 365 on .Net Framework Platform without problems. But now I need to do the same on .Net Core or newer platform (because I need to put it into Docker container later). At this case I try to use .Net6.

I created new console application and added the NuGet packages:

• Microsoft.PowerPlatform.Dataverse.Client v0.6.6
• System.Configuration.ConfigurationManager v6.0.0
• System.ServiceModel.Primitives v4.9.0

My simple Program.cs file:

using System.Net;
using System.ServiceModel.Description;
using Microsoft.Crm.Sdk.Messages;
using Microsoft.Xrm.Sdk.Client;

namespace ConsoleAppExample
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.Title = "CRM console client";

            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

            var orgServiceUrl = "http://dev-crm-app02/MyCompany/XRMServices/2011/Organization.svc";
            var crmUserLogin = "myLogin";
            var crmUserPassword = "myPassword"; 

            var credentials = new ClientCredentials();
            credentials.UserName.UserName = crmUserLogin;
            credentials.UserName.Password = crmUserPassword;

            try
            {
                using (var orgService = new OrganizationServiceProxy(new Uri(orgServiceUrl),
                           null, credentials, null))
                {
                    RetrieveVersionRequest versionRequest = new RetrieveVersionRequest();
                    RetrieveVersionResponse versionResponse =
                        (RetrieveVersionResponse) orgService.Execute(versionRequest);

                    WhoAmIRequest whoAmIRequest = new WhoAmIRequest();
                    WhoAmIResponse whoAmIResponse = (WhoAmIResponse) orgService.Execute(whoAmIRequest);

                    Console.WriteLine($"\nOrganizationService: {orgServiceUrl}");
                    Console.WriteLine($"CRM version: {versionResponse.Version}");
                    Console.WriteLine($"User login: {crmUserLogin}");

                    Console.WriteLine($"\nOrganizationId: {whoAmIResponse.OrganizationId}");
                    Console.WriteLine($"BusinessUnitId: {whoAmIResponse.BusinessUnitId}");
                    Console.WriteLine($"UserId: {whoAmIResponse.UserId}");
                }
            }
            catch (Exception ex)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine(ex.Message); // Xrm.Sdk WSDL
                if (ex.InnerException != null)
                {
                    Console.WriteLine(ex.InnerException.Message);
                }

                Console.ResetColor();
            }
            Console.WriteLine("\nPress ENTER for exit...");
            Console.ReadLine();
        }
    }
}

But when I run my application I get the error:

Xrm.Sdk WSDL

Why does it happen and how can I solve it?