# Facing issue in configuring Learn-to-rank ElasticSearch plugin demo **URL:** \ **Category:** Elasticsearch\ **Created:** [January 23, 2018, 9:57am UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636 "2018-01-23T09:57:56Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![AamirNakhwa](https://avatars.discourse-cdn.com/v4/letter/a/71c47a/32.png) [@AamirNakhwa](https://discuss.elastic.co/u/AamirNakhwa)\ **Post date:** [January 23, 2018, 9:57am UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636/1 "2018-01-23T09:57:57Z")
I am trying to configure **learning-to-rank (ltr)** same demo on my machine as [this one](https://github.com/o19s/elasticsearch-learning-to-rank/tree/master/demo). I have installed ElasticSearch 5.4, python 3.6 (it include pip), request libraries and learning-to-rank plugin 0.1.1. "tmdb" index created and documents also exist in it and elasticsearch queries are working on it. But when I execute **python [train.py](http://train.py)** command, it generates following error. [![](https://i.stack.imgur.com/SVwLL.jpg) ](https://i.stack.imgur.com/SVwLL.jpg) **Note:** _I am working on windows server._ **Note:** _It's mentioned in error that elasticsearch can't recognize sltr but ltr plugin is installed._ ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [January 23, 2018, 6:30pm UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636/2 "2018-01-23T18:30:42Z")
Linking to StackOverflow and not asking any question is not useful for anyone. Please repost your topic, ask an actual question, give details, etc. ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [January 23, 2018, 6:30pm UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636/3 "2018-01-23T18:30:47Z")
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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [January 24, 2018, 9:27am UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636/4 "2018-01-24T09:27:03Z")
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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [January 24, 2018, 9:27am UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636/5 "2018-01-24T09:27:22Z")
Please don't post images of text as they are hardly readable and not searchable. Instead paste the text and format it with `` icon. Check the preview window. Make sure you restarted your nodes and check what you have when running `GET _cat/plugins?v`. You can share it here. ---
**Author:** ![AamirNakhwa](https://avatars.discourse-cdn.com/v4/letter/a/71c47a/32.png) [@AamirNakhwa](https://discuss.elastic.co/u/AamirNakhwa)\ **Post date:** [January 24, 2018, 9:56am UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636/6 "2018-01-24T09:56:22Z")
I have installed elasticsearch as a service and I just restart (stop/start) it. Now getting response from command `http://localhost:9200/_nodes/_local/plugins?pretty=true` "plugins" : [ { "name" : "ltr-query", "version" : "0.1.1-es5.4.0", "description" : "Learing to Rank Query w/ RankLib Models", "classname" : "com.o19s.es.ltr.query.LtrQueryParserPlugin", "has\_native\_controller" : false } ], ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [January 24, 2018, 10:19am UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636/7 "2018-01-24T10:19:04Z")
I don't know. May be @softwaredoug can help? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 4, 2022, 5:11am UTC](https://discuss.elastic.co/t/facing-issue-in-configuring-learn-to-rank-elasticsearch-plugin-demo/116636/8 "2022-11-04T05:11:29Z")