# Issue with elastic search 5.0.0 - java.lang.ClassNotFoundException: org.apache.logging.log4j.core.async.DaemonThreadFactory

**URL:** <https://discuss.elastic.co/t/issue-with-elastic-search-5-0-0-java-lang-classnotfoundexception-org-apache-logging-log4j-core-async-daemonthreadfactory/64345>\
**Category:** Elasticsearch\
**Created:** [October 29, 2016, 3:32pm UTC](https://discuss.elastic.co/t/issue-with-elastic-search-5-0-0-java-lang-classnotfoundexception-org-apache-logging-log4j-core-async-daemonthreadfactory/64345 "2016-10-29T15:32:17Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![anand\_rathi](https://avatars.discourse-cdn.com/v4/letter/a/8c91f0/32.png) [@anand\_rathi](https://discuss.elastic.co/u/anand_rathi)\
**Post date:** [January 12, 2017, 1:57am UTC](https://discuss.elastic.co/t/issue-with-elastic-search-5-0-0-java-lang-classnotfoundexception-org-apache-logging-log4j-core-async-daemonthreadfactory/64345/9 "2017-01-12T01:57:49Z")

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After adding correct log4j configuration this error goes away  
  
org.apache.logging.log4j  
log4j-api  
2.7  
  
  
org.apache.logging.log4j  
log4j-core  
2.7

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_[View the full topic](https://discuss.elastic.co/t/issue-with-elastic-search-5-0-0-java-lang-classnotfoundexception-org-apache-logging-log4j-core-async-daemonthreadfactory/64345)._