# Gatling 2.1.7 SimulationClass not found by gatling-maven-plugin 2.1.7

**URL:** <https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458>\
**Category:** Gatling (Open-Source)\
**Created:** [August 11, 2015, 12:49pm UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458 "2015-08-11T12:49:55Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Daniel\_Moll](https://avatars.discourse-cdn.com/v4/letter/d/97f17d/32.png) [@Daniel\_Moll](https://community.gatling.io/u/Daniel_Moll)\
**Post date:** [August 11, 2015, 12:49pm UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458/1 "2015-08-11T12:49:55Z")

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Hi Guys,

I am trying to upgrade my setup to version 2.1.7. When I use the gatling-maven-plugin (v2.1.7) "gatling:execute" command to start my simulation I am prompted to select one of the available simulation classes in the project while the logs indicate that the correct Simulation class and folder are set to the value I set in my pom.xml in the plugin configuration:

\<simulationClass\>com.klm.gatling.setup.CheckinAPI\</simulationClass\>

[DEBUG] (f) simulationClass = com.klm.gatling.setup.CheckinAPI  
[DEBUG] (f) simulationsFolder = D:\dev\workspace\checkin-api\checkin-api-test-resources\performance-test\src\test\scala

When I use gatling-maven-plugin-2.1.7 with Gatling 2.1.6 I see the same behavior.

If I use the gatling-maven-plugin-2.1.7 and Gatling 2.1.5 in my pom, like:

\<dependency\>  
&nbsp;&nbsp;&nbsp;&nbsp;\<groupId\>io.gatling.highcharts\</groupId\>  
&nbsp;&nbsp;&nbsp;&nbsp;\<artifactId\>gatling-charts-highcharts\</artifactId\>  
&nbsp;&nbsp;&nbsp;&nbsp;\<version\>2.1.5\</version\>  
\</dependency\>

the configured simulation class is launched as expected.

Did something change in version 2.1.6 that requires me to make some modification somewhere?

Thanks for your help

Cheers

Daniel

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<div class="post-metadata">

**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [August 11, 2015, 2:22pm UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458/2 "2015-08-11T14:22:13Z")

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Does this only happen on Windows?  
Does your simulation depend on anything else than Gatling standard imports?

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<div class="post-metadata">

**Author:** ![Daniel\_Moll](https://avatars.discourse-cdn.com/v4/letter/d/97f17d/32.png) [@Daniel\_Moll](https://community.gatling.io/u/Daniel_Moll)\
**Post date:** [August 11, 2015, 7:00pm UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458/3 "2015-08-11T19:00:58Z")

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Hi Stephane,

I just checked on my Mac, same problem there. The simulation has no other dependencies then the one below

\<dependency\>  
&nbsp;&nbsp;&nbsp;&nbsp;\<groupId\>io.gatling.highcharts\</groupId\>  
&nbsp;&nbsp;&nbsp;&nbsp;\<artifactId\>gatling-charts-highcharts\</artifactId\>  
&nbsp;&nbsp;&nbsp;&nbsp;\<version\>2.1.7\</version\>  
\</dependency\>

Also, when I start the simulation by selecting it from the prompted list, I get "Could not locate feeder file", while the feeder file is present in the right location. Seem like somehow all path are messed up...

cheers

Daniel

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<div class="post-metadata">

**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [August 11, 2015, 7:50pm UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458/4 "2015-08-11T19:50:26Z")

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Did you try to mvn clean first?  
Does the [demo](https://github.com/gatling/gatling-maven-plugin-demo) work for you (it does for me)?

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<div class="post-metadata">

**Author:** ![Daniel\_Moll](https://avatars.discourse-cdn.com/v4/letter/d/97f17d/32.png) [@Daniel\_Moll](https://community.gatling.io/u/Daniel_Moll)\
**Post date:** [August 12, 2015, 9:19am UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458/5 "2015-08-12T09:19:45Z")

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Demo works for me as well, I'll let you know when I find the root cause.

thanks again

Cheers

Daniel

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<div class="post-metadata">

**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [August 12, 2015, 11:45am UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458/6 "2015-08-12T11:45:16Z")

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Crossing fingers.  
Thanks Daniel!

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<div class="post-metadata">

**Author:** ![Daniel\_Moll](https://avatars.discourse-cdn.com/v4/letter/d/97f17d/32.png) [@Daniel\_Moll](https://community.gatling.io/u/Daniel_Moll)\
**Post date:** [August 12, 2015, 1:18pm UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458/7 "2015-08-12T13:18:13Z")

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Stephane,

Could the problem be caused by the location of Engine.scala/IDEPathHelper.scale in the project? I moved those from the standard location.

Cheers

Daniel

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<div class="post-metadata">

**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [August 12, 2015, 1:28pm UTC](https://community.gatling.io/t/gatling-2-1-7-simulationclass-not-found-by-gatling-maven-plugin-2-1-7/2458/8 "2015-08-12T13:28:23Z")

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No. Those are only used as main class launchers and are not used when launching from maven.