# SOLUTION FOR ERROR \*\*\* Could not find or load main class Files\*\*\*

**URL:** https://discuss.elastic.co/t/solution-for-error-could-not-find-or-load-main-class-files/145241
**Category:** Logstash
**Created:** [August 20, 2018, 8:51pm UTC](https://discuss.elastic.co/t/solution-for-error-could-not-find-or-load-main-class-files/145241 "2018-08-20T20:51:21Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![ARTUSO](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/artuso/32/34650_2.png) [@ARTUSO](https://discuss.elastic.co/u/ARTUSO)
#### Post date: [August 20, 2018, 8:51pm UTC](https://discuss.elastic.co/t/solution-for-error-could-not-find-or-load-main-class-files/145241/1 "2018-08-20T20:51:21Z")

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Hi folks,

For fix the error **Could not find or load main class Files** when to run logstash.bat, you must add quote in the environment variable **%CLASSPATH%**.

See it below more detais:  
  
  
**Before:**  
%JAVA% %JAVA\_OPTS% -cp **%CLASSPATH%** org.logstash.Logstash %\*  
  
  
**After:**  
%JAVA% %JAVA\_OPTS% -cp **"%CLASSPATH%"** org.logstash.Logstash %\*  
  
  
Regards,  
Artuso

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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: [September 17, 2018, 8:51pm UTC](https://discuss.elastic.co/t/solution-for-error-could-not-find-or-load-main-class-files/145241/2 "2018-09-17T20:51:26Z")

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