# Log stash 5.5.0 and 5.5.1 Unable to start in windows

**URL:** <https://discuss.elastic.co/t/log-stash-5-5-0-and-5-5-1-unable-to-start-in-windows/94754>\
**Category:** Logstash\
**Created:** [July 27, 2017, 7:24am UTC](https://discuss.elastic.co/t/log-stash-5-5-0-and-5-5-1-unable-to-start-in-windows/94754 "2017-07-27T07:24:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![prabushankar79](https://avatars.discourse-cdn.com/v4/letter/p/3ab097/32.png) [@prabushankar79](https://discuss.elastic.co/u/prabushankar79)\
**Post date:** [July 27, 2017, 7:24am UTC](https://discuss.elastic.co/t/log-stash-5-5-0-and-5-5-1-unable-to-start-in-windows/94754/1 "2017-07-27T07:24:06Z")

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Now again Published Logstash core is not working . I am a new bee to Elastic, when i am trying to start Logstash in my windows machine, I am getting the following error . I have referred few older post and referred the bug#6373, #6374 and #6377, I tried the fixes , but doesn;t seem to work. I have tried this with 5.5.0 and 5.5.1.. both versions has issues.

My JAVA\_HOME is C:/Program Files/java/JDK 1.8.131  
My Gem spec contains the following line  
gem.files = Dir.glob(["logstash-core.gemspec", "gemspec\_jars.rb", "lib/ **/\*.rb", "spec/** /_.rb", "locales/_", "lib/logstash/api/init.ru", "lib/logstash-core/logstash-core.jar", "lib/\*\*/\*.jar"])  
Error Message:  
C:\elastic\tst\logstash-5.5.1\bin\>logstash -e 'input { stdin { } } output { stdo  
ut {} }'  
ERROR StatusLogger Log4j2 could not find a logging implementation. Please add lo  
g4j-core to the classpath. Using SimpleLogger to log to the console...  
NameError: missing class name (`org.apache.logging.log4j.core.config.Configurato  
r')  
get\_proxy\_or\_package\_under\_package at org/jruby/javasupport/JavaUtilities.java  
:54  
method\_missing at file:/C:/elastic/tst/logstash-5.5.1/vend  
or/jruby/lib/jruby.jar!/jruby/java/java\_package\_module\_template.rb:14  
Logging at C:/elastic/tst/logstash-5.5.1/logstash-c  
ore/lib/logstash/logging/logger.rb:8  
LogStash at C:/elastic/tst/logstash-5.5.1/logstash-c  
ore/lib/logstash/logging/logger.rb:5  
(root) at C:/elastic/tst/logstash-5.5.1/logstash-c  
ore/lib/logstash/logging/logger.rb:4  
require at org/jruby/RubyKernel.java:1040  
(root) at C:/elastic/tst/logstash-5.5.1/logstash-c  
ore/lib/logstash/util/loggable.rb:1  
require at org/jruby/RubyKernel.java:1040  
(root) at C:/elastic/tst/logstash-5.5.1/logstash-c  
ore/lib/logstash/util/loggable.rb:2  
require at org/jruby/RubyKernel.java:1040  
(root) at C:/elastic/tst/logstash-5.5.1/logstash-c  
ore/lib/logstash/settings.rb:1  
require at org/jruby/RubyKernel.java:1040  
(root) at C:/elastic/tst/logstash-5.5.1/logstash-c  
ore/lib/logstash/settings.rb:2  
require at org/jruby/RubyKernel.java:1040  
(root) at C:\elastic\tst\logstash-5.5.1\lib\bootst  
rap\environment.rb:70

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<div class="post-metadata">

**Author:** ![prabushankar79](https://avatars.discourse-cdn.com/v4/letter/p/3ab097/32.png) [@prabushankar79](https://discuss.elastic.co/u/prabushankar79)\
**Post date:** [July 27, 2017, 4:04pm UTC](https://discuss.elastic.co/t/log-stash-5-5-0-and-5-5-1-unable-to-start-in-windows/94754/2 "2017-07-27T16:04:51Z")

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The above error seems to be appear in a particular machine.. The error is not going away even if you removed the directory completely and then resinstall still has the same issue irerespetive of logstash version

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<div class="post-metadata">

**Author:** ![prabushankar79](https://avatars.discourse-cdn.com/v4/letter/p/3ab097/32.png) [@prabushankar79](https://discuss.elastic.co/u/prabushankar79)\
**Post date:** [August 1, 2017, 12:52pm UTC](https://discuss.elastic.co/t/log-stash-5-5-0-and-5-5-1-unable-to-start-in-windows/94754/3 "2017-08-01T12:52:49Z")

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No help or suggestions yet from this community.. As it looks like too many requests and too few people only responding.. Any help in this regards is highly appreciated..

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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:** [August 29, 2017, 12:53pm UTC](https://discuss.elastic.co/t/log-stash-5-5-0-and-5-5-1-unable-to-start-in-windows/94754/4 "2017-08-29T12:53:03Z")

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