在Fragment中getList报错？求帮忙，谢谢！

MyStringRequest request=new MyStringRequest(url,
new Response.Listener() {

                    @Override
        public void onResponse(String response) {
            sousuoentity.clear();
            Gson gson=new Gson();
          Interpolator.Result result=gson.fromJson(response,
                                                Interpolator.Result.class);
            List<SouSuoEntity> entities = result.getList();
            sousuoentity.addAll(entities);
            handler.sendEmptyMessage(0);
                    }
                    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {}
    });

你这个result中有getList方法吗