# java.lang.IllegalArgumentException by percolator plugin

**URL:** <https://discuss.elastic.co/t/java-lang-illegalargumentexception-by-percolator-plugin/192611>\
**Category:** Elasticsearch\
**Created:** [July 29, 2019, 6:58am UTC](https://discuss.elastic.co/t/java-lang-illegalargumentexception-by-percolator-plugin/192611 "2019-07-29T06:58:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ksunil](https://avatars.discourse-cdn.com/v4/letter/k/439d5e/32.png) [@ksunil](https://discuss.elastic.co/u/ksunil)\
**Post date:** [July 29, 2019, 6:58am UTC](https://discuss.elastic.co/t/java-lang-illegalargumentexception-by-percolator-plugin/192611/1 "2019-07-29T06:58:06Z")

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Hi @Andrew_Cholakian1,

I am facing the issue related to percolator plugin while starting elasticsearch service as started working recently on this from other person who left this project. So i am new to this but seeing the error information seems percolator plugin file being used for 6.7.2 and elastic version is 6.6.2.  
[2019-07-29T14:31:08,162][ERROR][o.e.b.Bootstrap] [node-1] Exception  
java.lang.IllegalArgumentException: Plugin [percolator] was built for Elasticsearch version 6.7.2 but version 6.6.2 is running  
at org.elasticsearch.plugins.PluginsService.verifyCompatibility(PluginsService.java:340) ~[elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.plugins.PluginsService.loadBundle(PluginsService.java:525) ~[elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:465) ~[elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.plugins.PluginsService.(PluginsService.java:157) ~[elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.node.Node.(Node.java:337) ~[elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.node.Node.(Node.java:265) ~[elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:212) ~[elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) ~[elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) [elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) [elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) [elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) [elasticsearch-cli-6.6.2.jar:6.6.2]  
at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-6.6.2.jar:6.6.2]  
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:116) [elasticsearch-6.6.2.jar:6.6.2]  
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:93) [elasticsearch-6.6.2.jar:6.6.2]

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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:** [August 26, 2019, 6:58am UTC](https://discuss.elastic.co/t/java-lang-illegalargumentexception-by-percolator-plugin/192611/2 "2019-08-26T06:58:08Z")

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Closed on August 26, 2019, 6:58am UTC

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