# Unable to install logstash-core gem

**URL:** https://discuss.elastic.co/t/unable-to-install-logstash-core-gem/126619
**Category:** Logstash
**Created:** [April 3, 2018, 6:21pm UTC](https://discuss.elastic.co/t/unable-to-install-logstash-core-gem/126619 "2018-04-03T18:21:25Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![annk](https://avatars.discourse-cdn.com/v4/letter/a/c68b51/32.png) [@annk](https://discuss.elastic.co/u/annk)
#### Post date: [April 5, 2018, 2:40pm UTC](https://discuss.elastic.co/t/unable-to-install-logstash-core-gem/126619/6 "2018-04-05T14:40:20Z")

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thanks . I managed to install the correct version but I did get this (error?)

./logstash-plugin install file:///root/canvas/x-pack-6.2.3.zip  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Invalid date/time in zip entry  
Install successful

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