# Logstash failed to start (org.jruby.RubyKernel.exit(org/jruby/RubyKernel.java:790) ~\[jruby.jar:?\])

**URL:** https://discuss.elastic.co/t/logstash-failed-to-start-org-jruby-rubykernel-exit-org-jruby-rubykernel-java-790-jruby-jar/318457
**Category:** Logstash
**Created:** [November 8, 2022, 4:21pm UTC](https://discuss.elastic.co/t/logstash-failed-to-start-org-jruby-rubykernel-exit-org-jruby-rubykernel-java-790-jruby-jar/318457 "2022-11-08T16:21:55Z")
**Posts on this page:** 1
**Showing post:** 10

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### Author: ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [November 8, 2022, 8:06pm UTC](https://discuss.elastic.co/t/logstash-failed-to-start-org-jruby-rubykernel-exit-org-jruby-rubykernel-java-790-jruby-jar/318457/10 "2022-11-08T20:06:38Z")

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> [@Rootlente](#):
>
> Invalid version of beats protocol: 64

See [this](https://discuss.elastic.co/t/logstash-beats-69-71-error/290708/3) post.

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