# Logstash error

**URL:** <https://discuss.elastic.co/t/logstash-error/305217>\
**Category:** Logstash\
**Created:** [May 19, 2022, 6:19pm UTC](https://discuss.elastic.co/t/logstash-error/305217 "2022-05-19T18:19:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Naga\_Prudhvi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/naga_prudhvi/32/99501_2.png) [@Naga\_Prudhvi](https://discuss.elastic.co/u/Naga_Prudhvi)\
**Post date:** [May 19, 2022, 6:19pm UTC](https://discuss.elastic.co/t/logstash-error/305217/1 "2022-05-19T18:19:16Z")

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I am getting below error, while loading data into old index.

[2022-05-19T23:38:51,354][ERROR][logstash.filters.ruby][main][0c9121c6ce91a23303b26f6c1387d90c28a872d644b33037968422ec670a60c1] Ruby exception occurred: undefined method `/' for "00.19":String {:class=>"NoMethodError", :backtrace=>[":1:in `block in '", "/ELK\_03/logstash-7.16.2/vendor/bundle/jruby/2.5.0/gems/logstash-filter-ruby-3.1.7/lib/logstash/filters/ruby.rb:93:in `inline_script'", "/ELK_03/logstash-7.16.2/vendor/bundle/jruby/2.5.0/gems/logstash-filter-ruby-3.1.7/lib/logstash/filters/ruby.rb:86:in `filter'", "/ELK\_03/logstash-7.16.2/logstash-core/lib/logstash/filters/base.rb:159:in `do_filter'", "/ELK_03/logstash-7.16.2/logstash-core/lib/logstash/filters/base.rb:178:in `block in multi\_filter'", "org/jruby/RubyArray.java:1821:in `each'", "/ELK_03/logstash-7.16.2/logstash-core/lib/logstash/filters/base.rb:175:in `multi\_filter'", "org/logstash/config/ir/compiler/AbstractFilterDelegatorExt.java:134:in `multi_filter'", "/ELK_03/logstash-7.16.2/logstash-core/lib/logstash/java_pipeline.rb:299:in `block in start\_workers'"]}

Please help.

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<div class="post-metadata">

**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:** [May 19, 2022, 6:52pm UTC](https://discuss.elastic.co/t/logstash-error/305217/2 "2022-05-19T18:52:34Z")

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> [@Naga\_Prudhvi](#):
>
> `:backtrace=>[":1:in ` block in '", "/ELK\_03/logstash-7.16.2/vendor/bundle/jruby/2.5.0/gems/logstash-filter-ruby-3.1.7/lib/logstash/filters/ruby.rb:93:in `inline_script'",`

Your logstash configuration has a ruby filter in it. You need to show us how that ruby filter is configured.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [June 16, 2022, 6:52pm UTC](https://discuss.elastic.co/t/logstash-error/305217/3 "2022-06-16T18:52:50Z")

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