The following code works fine for .Net 4.8 with Nuget Microsoft.TeamFoundationServer.ExtendedClient Version=”16.205.1″

using System;
using Microsoft.TeamFoundation.Client;
using Microsoft.TeamFoundation.VersionControl.Client;
using Microsoft.VisualStudio.Services.WebApi;
using Microsoft.VisualStudio.Services.Common;

namespace TfsWorkspaceGet
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create VSS credentials
            VssBasicCredential vssCred = new VssBasicCredential(
                "valid userid", 
                "valid PAT token");

            // connect to TFS
            var tfsCollection = new TfsTeamProjectCollection(new Uri("https://someorg.com/tfs/projects"));
            tfsCollection.EnsureAuthenticated();

            //connect to Azure DevOps using the basic credentials
            var connection = new VssConnection(new Uri(tfsUrl), vssCred);

            var versionControlServer = tfsCollection.GetService<VersionControlServer>();

            // Create a workspace
            Workspace workspace = versionControlServer.CreateWorkspace("tmpTfsWorkspace");

            // Map the server path to the local path
            workspace.CreateMapping(new WorkingFolder(
                "$/SomProj/Mainline/DEV/SomeComponent", 
                @"D:WSSomProjMainlineDEVSomeComponent"));

            // Get the latest version
            workspace.Get();
        }
    }
}

Am trying to get it upgraded to working with .Net 6+… unsuccessfully

• Just upgrading the Nuget to consume .Net compatible Microsoft.TeamFoundationServer.ExtendedClient Version=”19.225.1″ shows multiple classes missing like
  • TfsTeamProjectCollection,
  • GetService
  • Workspace
    Most of the examples online seem to be centered around Git.
    And the closest Ive got is to using
    connection.GetClient<TfvcHttpClient>
    Though it does match for the Workspacesetup and get needs

Any help or pointers on this?