# Trying to generate report from multiple Gatling instances

**URL:** <https://community.gatling.io/t/trying-to-generate-report-from-multiple-gatling-instances/3818>\
**Category:** Gatling (Open-Source)\
**Created:** [July 11, 2017, 2:44pm UTC](https://community.gatling.io/t/trying-to-generate-report-from-multiple-gatling-instances/3818 "2017-07-11T14:44:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Tema\_Bolshakov](https://avatars.discourse-cdn.com/v4/letter/t/a587f6/32.png) [@Tema\_Bolshakov](https://community.gatling.io/u/Tema_Bolshakov)\
**Post date:** [July 11, 2017, 2:44pm UTC](https://community.gatling.io/t/trying-to-generate-report-from-multiple-gatling-instances/3818/1 "2017-07-11T14:44:45Z")

</div>

I run Gatling on several nodes and copied simulation.log to single host:

`

/gatling # ls reports/  
simulation1.log simulation3.log simulation4.log simulation5.log

`

Then, I’m running report generation and it failes

`/gatling # bin/gatling.sh -ro reports GATLING_HOME is set to /gatling Parsing log file(s)... Exception in thread "main" java.lang.IllegalArgumentException: requirement failed: simulation directory doesn't contain any log file. at scala.Predef$.require(Predef.scala:224) at io.gatling.charts.stats.LogFileReader.<init>(LogFileReader.scala:55) at io.gatling.app.RunResultProcessor.initLogFileReader(RunResultProcessor.scala:67) at io.gatling.app.RunResultProcessor.processRunResult(RunResultProcessor.scala:49) at io.gatling.app.Gatling$.start(Gatling.scala:64) at io.gatling.app.Gatling$.fromArgs(Gatling.scala:43) at io.gatling.app.Gatling$.main(Gatling.scala:35) at io.gatling.app.Gatling.main(Gatling.scala)`

I’m trying to follow this guide [http://gatling.io/docs/current/cookbook/scaling\_out/](http://gatling.io/docs/current/cookbook/scaling_out/)

Gatling version 2.2.5

What does it fail?