# Logstash error after upgrade

**URL:** https://discuss.elastic.co/t/logstash-error-after-upgrade/129243
**Category:** Logstash
**Created:** [April 24, 2018, 7:29am UTC](https://discuss.elastic.co/t/logstash-error-after-upgrade/129243 "2018-04-24T07:29:07Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![giuliano](https://avatars.discourse-cdn.com/v4/letter/g/ec9cab/32.png) [@giuliano](https://discuss.elastic.co/u/giuliano)
#### Post date: [April 24, 2018, 7:29am UTC](https://discuss.elastic.co/t/logstash-error-after-upgrade/129243/1 "2018-04-24T07:29:07Z")

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Hi all...  
I have upgrade 6.2.3 version to 6.2.4 and when I try to start the service I have this message:

Loaded: loaded (/etc/systemd/system/logstash.service; enabled; vendor preset: enabled)  
Active: active (running) since mar 2018-04-24 09:24:16 CEST; 17s ago  
Main PID: 2769 (java)  
Tasks: 26  
Memory: 445.3M  
CPU: 57.109s  
CGroup: /system.slice/logstash.service  
└─2769 /usr/bin/java -Xms256m -Xmx2g -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+DisableExplicitGC -Djav

apr 24 09:24:33 ELK-Test logstash[2769]: at org.jruby.ir.Compiler$1.load(Compiler.java:95)  
apr 24 09:24:33 ELK-Test logstash[2769]: at org.jruby.Ruby.runScript(Ruby.java:828)  
apr 24 09:24:33 ELK-Test logstash[2769]: at org.jruby.Ruby.runNormally(Ruby.java:747)  
apr 24 09:24:33 ELK-Test logstash[2769]: at org.jruby.Ruby.runNormally(Ruby.java:765)  
apr 24 09:24:33 ELK-Test logstash[2769]: at org.jruby.Ruby.runFromMain(Ruby.java:578)  
apr 24 09:24:33 ELK-Test logstash[2769]: at org.logstash.Logstash.run(Logstash.java:81)  
apr 24 09:24:33 ELK-Test logstash[2769]: at org.logstash.Logstash.main(Logstash.java:45)  
apr 24 09:24:33 ELK-Test logstash[2769]: 2018-04-24 09:24:32,946 main ERROR Null object returned for RollingFile in Appenders.  
apr 24 09:24:33 ELK-Test logstash[2769]: 2018-04-24 09:24:32,946 main ERROR Null object returned for RollingFile in Appenders.  
apr 24 09:24:33 ELK-Test logstash[2769]: 2018-04-24 09:24:32,947 main ERROR Unable to locate appender "plain\_rolling" for logger config "root"

I don't use a cluster configuration, but only one node.

Any idea?

Thanking in advance.

Giuliano

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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: [May 22, 2018, 7:29am UTC](https://discuss.elastic.co/t/logstash-error-after-upgrade/129243/2 "2018-05-22T07:29:08Z")

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