Quero incluir o arquivo carregado no meu projeto quando enviar meu formulário (c #)

A mensagem de erro que recebi:

{"O espaço de trabalho F: \ ABOUDASADOK \ new \ TaysirRdlc \ TaysirRdlc \ Reports \ Rdlcs \ Application 2 \ RDLC TEST1 \ V88 \ sadek.rdlc 'é recusado."}

my A ação é: '

public ActionResult Create(Rdlc rdlc, HttpPostedFileBase UploadFile) 
{
        Application currentApplication = db.Applications.Find(rdlc.ApplicationID);

        string AppNamePath = currentApplication.ApplicationName;
        string ModulePath = rdlc.Name;
        string VersionPath = rdlc.Version;
        string rdlcsPath = "Rdlcs";
        string reportsPath = @"~\Reports";

        string generatedPath = Path.Combine(reportsPath, rdlcsPath, AppNamePath, ModulePath, VersionPath);
        string path = Path.Combine(Server.MapPath(generatedPath), UploadFile.FileName);
        Directory.CreateDirectory(path).GetAccessControl();
        UploadFile.SaveAs(path);
        rdlc.File = UploadFile.FileName;
        if (ModelState.IsValid)
        {
            db.Rdlcs.Add(rdlc);
            db.SaveChanges();
            return Json(new {message = "successfully uploaded" });
        }
        ViewBag.ApplicationID = new SelectList(db.Applications, "ApplicationID", "ApplicationName", rdlc.ApplicationID);
        return View(rdlc);
    }

'

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