# Could not find or load main class org.elasticsearch.bootstrap.Elasticsearch Caused by: java.lang.ClassNotFoundException: org.elasticsearch.bootstrap.Elasticsearch

**URL:** <https://discuss.elastic.co/t/could-not-find-or-load-main-class-org-elasticsearch-bootstrap-elasticsearch-caused-by-java-lang-classnotfoundexception-org-elasticsearch-bootstrap-elasticsearch/293451>\
**Category:** Elasticsearch\
**Created:** [January 4, 2022, 2:00pm UTC](https://discuss.elastic.co/t/could-not-find-or-load-main-class-org-elasticsearch-bootstrap-elasticsearch-caused-by-java-lang-classnotfoundexception-org-elasticsearch-bootstrap-elasticsearch/293451 "2022-01-04T14:00:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Vivek\_Paralikar](https://avatars.discourse-cdn.com/v4/letter/v/a4c791/32.png) [@Vivek\_Paralikar](https://discuss.elastic.co/u/Vivek_Paralikar)\
**Post date:** [January 4, 2022, 2:00pm UTC](https://discuss.elastic.co/t/could-not-find-or-load-main-class-org-elasticsearch-bootstrap-elasticsearch-caused-by-java-lang-classnotfoundexception-org-elasticsearch-bootstrap-elasticsearch/293451/1 "2022-01-04T14:00:01Z")

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- Starting Elasticsearch Server Error: Could not find or load main class org.Elasticsearch.common.settings.KeyStoreCli  
Caused by: java.lang.NoClassDefFoundError: org/Elasticsearch/cli/LoggingAwareMultiCommand [fail]  
root@DESKTOP-7OFAEIV:/# Error: Could not find or load main class org.Elasticsearch.bootstrap.Elasticsearch  
Caused by: java.lang.ClassNotFoundException: org.Elasticsearch.bootstrap.Elasticsearch

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [January 4, 2022, 6:13pm UTC](https://discuss.elastic.co/t/could-not-find-or-load-main-class-org-elasticsearch-bootstrap-elasticsearch-caused-by-java-lang-classnotfoundexception-org-elasticsearch-bootstrap-elasticsearch/293451/2 "2022-01-04T18:13:42Z")

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Welcome to our community! 😃

Are you posting this to ask a question, or just to share some part of a log?

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**Author:** ![julioesf](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/julioesf/32/100534_2.png) [@julioesf](https://discuss.elastic.co/u/julioesf)\
**Post date:** [January 19, 2022, 1:44pm UTC](https://discuss.elastic.co/t/could-not-find-or-load-main-class-org-elasticsearch-bootstrap-elasticsearch-caused-by-java-lang-classnotfoundexception-org-elasticsearch-bootstrap-elasticsearch/293451/3 "2022-01-19T13:44:57Z")

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I believe it's an error because I'm going through the same situation, I have Elasticsearch version 7.10.2 and java 11.0.5

[21587]: Error: Could not find or load main class org.Elasticsearch.common.settings.KeyStoreCli  
[21587]: Caused by: java.lang.NoClassDefFoundError: org/Elasticsearch/cli/LoggingAwareMultiCommand  
[21587]: Error: Could not find or load main class org.Elasticsearch.bootstrap.Elasticsearch  
[21587]: Caused by: java.lang.ClassNotFoundException: org.Elasticsearch.bootstrap.Elasticsearch

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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:** [February 16, 2022, 1:45pm UTC](https://discuss.elastic.co/t/could-not-find-or-load-main-class-org-elasticsearch-bootstrap-elasticsearch-caused-by-java-lang-classnotfoundexception-org-elasticsearch-bootstrap-elasticsearch/293451/5 "2022-02-16T13:45:56Z")

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