<div dir="ltr">I have two problems first is that i am getting error "The method putHint(String, int) is undefined for the type GHRequest" in <div><div>protected GHResponse doInBackground(Void... v) {</div><div><span class="" style="white-space:pre">   </span>                StopWatch sw = new StopWatch().start();</div>
<div><span class="" style="white-space:pre">    </span>                GHRequest req = new GHRequest(fromLat, fromLon, toLat, toLon)</div><div><span class="" style="white-space:pre">      </span>                        .algorithm("dijkstrabi").putHint("douglas.minprecision", 1);</div>
<div><span class="" style="white-space:pre">    </span>                GHResponse resp = hopper.route(req);</div><div><span class="" style="white-space:pre">       </span>                time = sw.stop().getSeconds();</div><div><span class="" style="white-space:pre">     </span>                return resp;</div>
<div><span class="" style="white-space:pre">    </span>            }</div></div><div><br></div><div style>and secondly i want to know that where .viz graph lies with which our app interacts.</div></div>