Error in passing json value from web api to ngfor

Question

This is the error you are making when calling the api. think this is something in exiting the api or receiving it in my other project?

ERROR Error: Cannot find a supporting differ Object '[Object Object]' of type 'Object'. Ngfor only Supports Binding to Iterables such as Arrays.

Code of the web api:

public IList<RepresentanteConsulta> ConsultaSelect(int? cod, string type)
    {
        try
        {
            using (ISession session = SessionFactory.OpenSession())
            {
                ClienteRepository cli = new ClienteRepository();
                IDictionary<String, object> dbParameters = new Dictionary<String, object>();
                StringBuilder sb = new StringBuilder();
                sb.AppendLine("SELECT REPCN_REPRESENTANTE \"Codigo\", REPNM_REPRESENTANTE \"Nome\"");
                sb.AppendLine("FROM T_REPRESENTANTE REP JOIN T_REPRESENTANTE_X_CLIENTE REPCLI ON (REPCLI.ISN_REPRESENTANTE = REP.ISN_REPRESENTANTE) ");
                sb.AppendFormat("WHERE REPCLI.ISN_CLIENTE = {0} ", cod);
                return CreateSQLQuery<RepresentanteConsulta>(sb.ToString(), dbParameters);
            }
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);
        }
    }

Call still in the web api controller:

public JsonResult SelectPesquisa(int cod, string type)
    {
        switch (type)
        {
            case "rep":
                return Json(new { teste = representanteRepository.ConsultaSelect(cod, type) }, JsonRequestBehavior.AllowGet);
        }
        return Json(new { result = "Não implementado" }, JsonRequestBehavior.AllowGet);
    }

Call in the other angular project:

switch (type) {
        case "rep":
            params = params.set('cod', formGroup.controls['codigoCliente'].value);
            this.retornaNomeApi(NEGOCIUS_API + '/Pesquisa/SelectPesquisa', params).subscribe(res => {this.teste = res;console.log(this.teste)})
            return this.teste;
    }