Amlst module not working for me

[koorosh_kdt]

Hi
I was trying to build in module from this document but
https://www.wowza.com/docs/how-to-use-java-api-calls-to-resolve-smil-file-requests

getting this error in log files
“stream not found”

HTTPStreamerAdapterCupertinoStreamer.onPlaylist: Stream not found [live/amlst:myStream3/chunklist_w14425628120_b412000.m3u8]: myStream3/_240p

[koorosh_kdt]

package com.wowza.wms.plugin.test.module;

import com.wowza.wms.application.IApplicationInstance;
import com.wowza.wms.medialist.MediaList;
import com.wowza.wms.medialist.MediaListRendition;
import com.wowza.wms.medialist.MediaListSegment;
import com.wowza.wms.module.ModuleBase;
import com.wowza.wms.stream.IMediaListProvider;
import com.wowza.wms.stream.IMediaListReader;
import com.wowza.wms.stream.IMediaStream;

public class ModuleAMLSTTestLive extends ModuleBase
{
class MyMediaListProvider implements IMediaListProvider
{
public MediaList resolveMediaList(IMediaListReader mediaListReader, IMediaStream stream, String streamName)
{
getLogger().info("mediaListReader: " + mediaListReader);
getLogger().info("stream: " + stream);
getLogger().info("streamName: " + streamName);

		MediaList mediaList = new MediaList();

		MediaListSegment segment = new MediaListSegment();
		mediaList.addSegment(segment);

		MediaListRendition rendition1 = new MediaListRendition();
		segment.addRendition(rendition1);

		rendition1.setName(streamName+"_400");
		rendition1.setBitrateAudio(128000);
		rendition1.setBitrateVideo(400000);
		rendition1.setWidth(320);
		rendition1.setHeight(240);
		rendition1.setAudioCodecId("mp4a.40.2");
		rendition1.setVideoCodecId("avc1.66.12");

		MediaListRendition rendition2 = new MediaListRendition();
		segment.addRendition(rendition2);

		rendition2.setName(streamName+"_800");
		rendition2.setBitrateAudio(128000);
		rendition2.setBitrateVideo(800000);
		rendition2.setWidth(640);
		rendition2.setHeight(480);
		rendition2.setAudioCodecId("mp4a.40.2");
		rendition2.setVideoCodecId("avc1.77.31");

		return mediaList;
	}
}

public void onAppStart(IApplicationInstance appInstance)
{
	appInstance.setMediaListProvider(new MyMediaListProvider());
}

}

this is my code.