# Elasticsearch.js installation **URL:** \ **Category:** Elasticsearch\ **Created:** [August 20, 2018, 5:46pm UTC](https://discuss.elastic.co/t/elasticsearch-js-installation/145216 "2018-08-20T17:46:54Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Akaren](https://avatars.discourse-cdn.com/v4/letter/a/8dc957/32.png) [@Akaren](https://discuss.elastic.co/u/Akaren)\ **Post date:** [August 20, 2018, 5:46pm UTC](https://discuss.elastic.co/t/elasticsearch-js-installation/145216/1 "2018-08-20T17:46:54Z")
Hello, I have install elasticserach.js ([https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/index.html](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/index.html)) in my ELK 6.1.1. But Kibana now shows `plugin:elasticsearch@6.1.1 [illegal_argument_exception] request [/.kibana] contains unrecognized parameter: [feature]` During installation it showed only `lodash.isempty@4.4.0 node_modules/lodash.isempty lodash.trimend@4.5.1 node_modules/lodash.trimend kibana@6.1.1 /usr/share/kibana └─┬ elasticsearch@15.1.1 ├─┬ agentkeepalive@3.5.1 │ └── humanize-ms@1.2.1 └── lodash@4.17.10 npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules/ch okidar/node_modules/fsevents): npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@ 1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"} ) npm WARN kibana@6.1.1 No license field.` What does it mean? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [September 17, 2018, 5:47pm UTC](https://discuss.elastic.co/t/elasticsearch-js-installation/145216/2 "2018-09-17T17:47:00Z")
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