# How to run es with source code. I mean build the source code and debug

**URL:** <https://discuss.elastic.co/t/how-to-run-es-with-source-code-i-mean-build-the-source-code-and-debug/21278>\
**Category:** Elasticsearch\
**Created:** [December 16, 2014, 3:12pm UTC](https://discuss.elastic.co/t/how-to-run-es-with-source-code-i-mean-build-the-source-code-and-debug/21278 "2014-12-16T15:12:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![aaren](https://avatars.discourse-cdn.com/v4/letter/a/3bc359/32.png) [@aaren](https://discuss.elastic.co/u/aaren)\
**Post date:** [December 16, 2014, 3:12pm UTC](https://discuss.elastic.co/t/how-to-run-es-with-source-code-i-mean-build-the-source-code-and-debug/21278/1 "2014-12-16T15:12:53Z")

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Could someone give me steps of running es with source code.  
After build with maven, I run ElasticSearchF.java. it throws Unable to locate the class org.elasticsearch.bootstrap.ElasticsearchF : java.lang.ClassNotFoundException

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 12:43am UTC](https://discuss.elastic.co/t/how-to-run-es-with-source-code-i-mean-build-the-source-code-and-debug/21278/2 "2017-07-06T00:43:25Z")

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