# Jar Hell Error in 5.5.3 **URL:** \ **Category:** Elasticsearch\ **Created:** [June 5, 2018, 8:29am UTC](https://discuss.elastic.co/t/jar-hell-error-in-5-5-3/134562 "2018-06-05T08:29:45Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![aditi](https://avatars.discourse-cdn.com/v4/letter/a/e480ec/32.png) [@aditi](https://discuss.elastic.co/u/aditi)\ **Post date:** [June 5, 2018, 8:29am UTC](https://discuss.elastic.co/t/jar-hell-error-in-5-5-3/134562/1 "2018-06-05T08:29:46Z")
Hi, I am getting the below error after I tried start elasticsearch on a Linux RHEL 6 server with java -version openjdk version "1.8.0\_171". I have used the tar file for this app. [2018-06-05T00:32:15,527][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [node-1] uncaught exception in thread [main] org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: jar hell! duplicate jar [/opt/elasticsearch/lib/elasticsearch-5.5.3.jar] on classpath: /opt/elasticsearch/lib/elasticsearch-5.5.3.jar:/opt/elasticsearch/lib/joda-time-2.9.5.jar:/opt/elasticsearch/lib/jackson-dataformat-cbor-2.8.6.jar:/opt/elasticsearch/lib/jackson-core-2.8.6.jar:/opt/elasticsearch/lib/lucene-queryparser-6.6.0.jar:/opt/elasticsearch/lib/lucene-misc-6.6.0.jar:/opt/elasticsearch/lib/lucene-queries-6.6.0.jar:/opt/elasticsearch/lib/lucene-suggest-6.6.0.jar:/opt/elasticsearch/lib/lucene-core-6.6.0.jar:/opt/elasticsearch/lib/spatial4j-0.6.jar:/opt/elasticsearch/lib/hppc-0.7.1.jar:/opt/elasticsearch/lib/securesm-1.1.jar:/opt/elasticsearch/lib/jts-1.13.jar:/opt/elasticsearch/lib/lucene-spatial-6.6.0.jar:/opt/elasticsearch/lib/jopt-simple-5.0.2.jar:/opt/elasticsearch/lib/lucene-spatial-extras-6.6.0.jar:/opt/elasticsearch/lib/lucene-backward-codecs-6.6.0.jar:/opt/elasticsearch/lib/jackson-dataformat-yaml-2.8.6.jar:/opt/elasticsearch/lib/lucene-spatial3d-6.6.0.jar:/opt/elasticsearch/lib/HdrHistogram-2.1.9.jar:/opt/elasticsearch/lib/lucene-sandbox-6.6.0.jar:/opt/elasticsearch/lib/lucene-analyzers-common-6.6.0.jar:/opt/elasticsearch/lib/elasticsearch-5.5.3.jar:/opt/elasticsearch/lib/t-digest-3.0.jar:/opt/elasticsearch/lib/jna-4.4.0.jar:/opt/elasticsearch/lib/snakeyaml-1.15.jar:/opt/elasticsearch/lib/java-version-checker-5.5.3.jar:/opt/elasticsearch/lib/plugin-cli-5.5.3.jar:/opt/elasticsearch/lib/lucene-highlighter-6.6.0.jar:/opt/elasticsearch/lib/log4j-api-2.8.2.jar:/opt/elasticsearch/lib/lucene-grouping-6.6.0.jar:/opt/elasticsearch/lib/lucene-join-6.6.0.jar:/opt/elasticsearch/lib/log4j-1.2-api-2.8.2.jar:/opt/elasticsearch/lib/lucene-memory-6.6.0.jar:/opt/elasticsearch/lib/jackson-dataformat-smile-2.8.6.jar:/opt/elasticsearch/lib/log4j-core-2.8.2.jar at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:127) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:114) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:67) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.cli.Command.main(Command.java:88) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.5.3.jar:5.5.3] Caused by: java.lang.IllegalStateException: jar hell! duplicate jar [/opt/elasticsearch/lib/elasticsearch-5.5.3.jar] on classpath: /opt/elasticsearch/lib/elasticsearch-5.5.3.jar:/opt/elasticsearch/lib/joda-time-2.9.5.jar:/opt/elasticsearch/lib/jackson-dataformat-cbor-2.8.6.jar:/opt/elasticsearch/lib/jackson-core-2.8.6.jar:/opt/elasticsearch/lib/lucene-queryparser-6.6.0.jar:/opt/elasticsearch/lib/lucene-misc-6.6.0.jar:/opt/elasticsearch/lib/lucene-queries-6.6.0.jar:/opt/elasticsearch/lib/lucene-suggest-6.6.0.jar:/opt/elasticsearch/lib/lucene-core-6.6.0.jar:/opt/elasticsearch/lib/spatial4j-0.6.jar:/opt/elasticsearch/lib/hppc-0.7.1.jar:/opt/elasticsearch/lib/securesm-1.1.jar:/opt/elasticsearch/lib/jts-1.13.jar:/opt/elasticsearch/lib/lucene-spatial-6.6.0.jar:/opt/elasticsearch/lib/jopt-simple-5.0.2.jar:/opt/elasticsearch/lib/lucene-spatial-extras-6.6.0.jar:/opt/elasticsearch/lib/lucene-backward-codecs-6.6.0.jar:/opt/elasticsearch/lib/jackson-dataformat-yaml-2.8.6.jar:/opt/elasticsearch/lib/lucene-spatial3d-6.6.0.jar:/opt/elasticsearch/lib/HdrHistogram-2.1.9.jar:/opt/elasticsearch/lib/lucene-sandbox-6.6.0.jar:/opt/elasticsearch/lib/lucene-analyzers-common-6.6.0.jar:/opt/elasticsearch/lib/elasticsearch-5.5.3.jar:/opt/elasticsearch/lib/t-digest-3.0.jar:/opt/elasticsearch/lib/jna-4.4.0.jar:/opt/elasticsearch/lib/snakeyaml-1.15.jar:/opt/elasticsearch/lib/java-version-checker-5.5.3.jar:/opt/elasticsearch/lib/plugin-cli-5.5.3.jar:/opt/elasticsearch/lib/lucene-highlighter-6.6.0.jar:/opt/elasticsearch/lib/log4j-api-2.8.2.jar:/opt/elasticsearch/lib/lucene-grouping-6.6.0.jar:/opt/elasticsearch/lib/lucene-join-6.6.0.jar:/opt/elasticsearch/lib/log4j-1.2-api-2.8.2.jar:/opt/elasticsearch/lib/lucene-memory-6.6.0.jar:/opt/elasticsearch/lib/jackson-dataformat-smile-2.8.6.jar:/opt/elasticsearch/lib/log4j-core-2.8.2.jar at org.elasticsearch.bootstrap.JarHell.parseClassPath(JarHell.java:142) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.bootstrap.JarHell.parseClassPath(JarHell.java:99) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.bootstrap.JarHell.checkJarHell(JarHell.java:90) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:220) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:351) ~[elasticsearch-5.5.3.jar:5.5.3] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:123) ~[elasticsearch-5.5.3.jar:5.5.3] Can you please help. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 3, 2018, 8:29am UTC](https://discuss.elastic.co/t/jar-hell-error-in-5-5-3/134562/2 "2018-07-03T08:29:52Z")
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