# Logstash 6.7.1 unable to start with error java.lang.NoSuchMethodError: org.apache.commons.codec.binary.Hex.encodeHexString

**URL:** <https://discuss.elastic.co/t/logstash-6-7-1-unable-to-start-with-error-java-lang-nosuchmethoderror-org-apache-commons-codec-binary-hex-encodehexstring/185079>\
**Category:** Logstash\
**Created:** [June 11, 2019, 2:38am UTC](https://discuss.elastic.co/t/logstash-6-7-1-unable-to-start-with-error-java-lang-nosuchmethoderror-org-apache-commons-codec-binary-hex-encodehexstring/185079 "2019-06-11T02:38:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nagarjun1](https://avatars.discourse-cdn.com/v4/letter/n/aca169/32.png) [@nagarjun1](https://discuss.elastic.co/u/nagarjun1)\
**Post date:** [June 11, 2019, 2:38am UTC](https://discuss.elastic.co/t/logstash-6-7-1-unable-to-start-with-error-java-lang-nosuchmethoderror-org-apache-commons-codec-binary-hex-encodehexstring/185079/1 "2019-06-11T02:38:27Z")

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**JAVA VERSION** : java version "1.8.0\_201"  
Java(TM) SE Runtime Environment (build 1.8.0\_201-b09)  
**WINDOWS** : 2008 R2  
**LOGSTASH** : 6.7.1  
**COMMAND** : logstash.bat --config.test\_and\_exit -f E:\ELK\logstash\bin\logstash-simple.conf

![conf](https://us1.discourse-cdn.com/elastic/original/3X/c/4/c4077f8b09d50014065165275ce0316d8aeb0953.jpeg)

 ![logstash-plain](https://us1.discourse-cdn.com/elastic/original/3X/7/6/767266b02429b08ad87764f15bab1bec28c86cae.jpeg)

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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:** [July 9, 2019, 2:38am UTC](https://discuss.elastic.co/t/logstash-6-7-1-unable-to-start-with-error-java-lang-nosuchmethoderror-org-apache-commons-codec-binary-hex-encodehexstring/185079/2 "2019-07-09T02:38:29Z")

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