# Java error when running Engine with Gatling 2.1.1
**URL:** https://community.gatling.io/t/java-error-when-running-engine-with-gatling-2-1-1/1821
**Category:** Gatling (Open-Source)
**Created:** [December 16, 2014, 8:30pm UTC](https://community.gatling.io/t/java-error-when-running-engine-with-gatling-2-1-1/1821 "2014-12-16T20:30:48Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@fugmag](https://community.gatling.io/u/fugmag)
#### Post date: [December 16, 2014, 8:30pm UTC](https://community.gatling.io/t/java-error-when-running-engine-with-gatling-2-1-1/1821/1 "2014-12-16T20:30:48Z")
Now I can rebuild my Gatling project in IntelliJ, but when running engine I get his:
`
Exception in thread “main” java.lang.NoSuchMethodError: scala.Predef$.ArrowAssoc(Ljava/lang/Object;)Ljava/lang/Object;
at io.gatling.core.config.GatlingPropertiesBuilder.dataDirectory(GatlingPropertiesBuilder.scala:36)
at Engine$.delayedEndpoint$Engine$1(Engine.scala:7)
at Engine$delayedInit$body.apply(Engine.scala:4)
at scala.Function0$class.apply$mcV$sp(Function0.scala:40)
at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
at scala.App$$anonfun$main$1.apply(App.scala:71)
at scala.App$$anonfun$main$1.apply(App.scala:71)
at scala.collection.immutable.List.foreach(List.scala:318)
at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
at scala.App$class.main(App.scala:71)
at Engine$.main(Engine.scala:4)
`
Any ideas what to do?
Cheers
---
### Author:  [@Pierre\_DAL-PRA](https://community.gatling.io/u/Pierre_DAL-PRA)
#### Post date: [December 16, 2014, 8:43pm UTC](https://community.gatling.io/t/java-error-when-running-engine-with-gatling-2-1-1/1821/2 "2014-12-16T20:43:25Z")
You’re somehow mixing Scala 2.10 and Scala 2.11 binaries : Clean your project, rebuild it, it should work
---
### Author:  [@fugmag](https://community.gatling.io/u/fugmag)
#### Post date: [December 16, 2014, 8:48pm UTC](https://community.gatling.io/t/java-error-when-running-engine-with-gatling-2-1-1/1821/3 "2014-12-16T20:48:59Z")
Ok,
But when running mvn clean install from terminal I get:
[ERROR] Failed to execute goal on project gatling: Could not resolve dependencies for project xxx.yyy.zzz:gatling:jar:1.0-SNAPSHOT: Failure to find org.scala-lang:scala-library:jar:2.11 in [http://repository.excilys.com/content/groups/public](http://repository.excilys.com/content/groups/public) was cached in the local repository, resolution will not be reattempted until the update interval of excilys has elapsed or updates are forced → [Help 1]
---
### Author:  [@Pierre\_DAL-PRA](https://community.gatling.io/u/Pierre_DAL-PRA)
#### Post date: [December 16, 2014, 8:51pm UTC](https://community.gatling.io/t/java-error-when-running-engine-with-gatling-2-1-1/1821/4 "2014-12-16T20:51:23Z")
Do you realise that it’s EXACTLY the same problem you had in another thread ?
Double check your pom.xml, you must have forgotten something.
---
### Author:  [@fugmag](https://community.gatling.io/u/fugmag)
#### Post date: [December 16, 2014, 8:56pm UTC](https://community.gatling.io/t/java-error-when-running-engine-with-gatling-2-1-1/1821/5 "2014-12-16T20:56:14Z")
Right, I just red the other thread. I had two scala-sdk in my global libraries in IntelliJ.
My bad.
Thanks for all the help.
I am now up and running on 2.1.1.
Great,
Cheers