# Kibana development mode, yarn installation

**URL:** <https://discuss.elastic.co/t/kibana-development-mode-yarn-installation/254753>\
**Category:** Kibana\
**Created:** [November 9, 2020, 12:16pm UTC](https://discuss.elastic.co/t/kibana-development-mode-yarn-installation/254753 "2020-11-09T12:16:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![omerf](https://avatars.discourse-cdn.com/v4/letter/o/7993a0/32.png) [@omerf](https://discuss.elastic.co/u/omerf)\
**Post date:** [November 9, 2020, 12:16pm UTC](https://discuss.elastic.co/t/kibana-development-mode-yarn-installation/254753/1 "2020-11-09T12:16:47Z")

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Hi,  
Last week I worked fine on the kibana dev, and now having trouble running "  
o yarn es snapshot --license trial "

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/f/7/f77fae72805b8736a1c7f536117983380943a69a.png)

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**Author:** ![flash1293](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/flash1293/32/41227_2.png) [@flash1293](https://discuss.elastic.co/u/flash1293)\
**Post date:** [November 9, 2020, 2:14pm UTC](https://discuss.elastic.co/t/kibana-development-mode-yarn-installation/254753/2 "2020-11-09T14:14:57Z")

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What's the issue you are experiencing? This error message looks like you are trying to access an Elasticsearch endpoint via Browser. You should load the Kibana interface instead (if you didn't change the config it should be `5601`)

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 7, 2020, 2:14pm UTC](https://discuss.elastic.co/t/kibana-development-mode-yarn-installation/254753/3 "2020-12-07T14:14:58Z")

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