Gatling below error on IntelliJ with maven

[Reet]

scalac: Error: ‘java.lang.String dotty.tools.dotc.reporting.Message.msg()’
java.lang.NoSuchMethodError: ‘java.lang.String dotty.tools.dotc.reporting.Message.msg()’
at dotty.tools.xsbt.DelegatingReporter.doReport(DelegatingReporter.java:47)
at dotty.tools.dotc.reporting.Reporter.issueUnconfigured(Reporter.scala:158)
at dotty.tools.dotc.reporting.Reporter.go$1(Reporter.scala:181)
at dotty.tools.dotc.reporting.Reporter.issueIfNotSuppressed(Reporter.scala:200)
at dotty.tools.dotc.reporting.Reporter.report(Reporter.scala:203)
at dotty.tools.dotc.report$.error(report.scala:69)
at dotty.tools.dotc.typer.ErrorReporting$.errorType(ErrorReporting.scala:31)
at dotty.tools.dotc.typer.TypeAssigner.notAMemberErrorType(TypeAssigner.scala:173)
at dotty.tools.dotc.typer.TypeAssigner.notAMemberErrorType$(TypeAssigner.scala:16)
at dotty.tools.dotc.typer.Typer.notAMemberErrorType(Typer.scala:115)
at dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:679)
at dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:687)
at dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:724)
at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2897)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2990)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:3058)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:3062)
at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3174)
at dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:934)
at dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:1094)
at dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:352)
at dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:115)
at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2928)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2991)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:3058)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:3062)
at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:3111)
at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:3130)
at dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2562)
at dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$1(Typer.scala:2916)
at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2920)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2990)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:3058)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:3062)
at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:3084)
at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:3130)
at dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2692)
at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2961)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2991)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:3058)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:3062)
at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3174)
at dotty.tools.dotc.typer.TyperPhase.typeCheck$$anonfun$1(TyperPhase.scala:44)
at dotty.tools.dotc.typer.TyperPhase.typeCheck$$anonfun$adapted$1(TyperPhase.scala:54)
at scala.Function0.apply$mcV$sp(Function0.scala:42)
at dotty.tools.dotc.core.Phases$Phase.monitor(Phases.scala:437)
at dotty.tools.dotc.typer.TyperPhase.typeCheck(TyperPhase.scala:54)
at dotty.tools.dotc.typer.TyperPhase.runOn$$anonfun$3(TyperPhase.scala:88)
at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.typer.TyperPhase.runOn(TyperPhase.scala:88)
at dotty.tools.dotc.Run.runPhases$1$$anonfun$1(Run.scala:247)
at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1321)
at dotty.tools.dotc.Run.runPhases$1(Run.scala:263)
at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:271)
at dotty.tools.dotc.Run.compileUnits$$anonfun$adapted$1(Run.scala:280)
at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:67)
at dotty.tools.dotc.Run.compileUnits(Run.scala:280)
at dotty.tools.dotc.Run.compileSources(Run.scala:195)
at dotty.tools.dotc.Run.compile(Run.scala:179)
at dotty.tools.dotc.Driver.doCompile(Driver.scala:35)
at dotty.tools.xsbt.CompilerBridgeDriver.run(CompilerBridgeDriver.java:88)
at dotty.tools.xsbt.CompilerBridge.run(CompilerBridge.java:22)
at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:91)
at org.jetbrains.jps.incremental.scala.local.IdeaIncrementalCompiler.compile(IdeaIncrementalCompiler.scala:57)
at org.jetbrains.jps.incremental.scala.local.LocalServer.doCompile(LocalServer.scala:52)
at org.jetbrains.jps.incremental.scala.local.LocalServer.compile(LocalServer.scala:30)
at org.jetbrains.jps.incremental.scala.remote.Main$.compileLogic(Main.scala:209)
at org.jetbrains.jps.incremental.scala.remote.Main$.$anonfun$handleCommand$1(Main.scala:192)
at org.jetbrains.jps.incremental.scala.remote.Main$.decorated$1(Main.scala:182)
at org.jetbrains.jps.incremental.scala.remote.Main$.handleCommand(Main.scala:189)
at org.jetbrains.jps.incremental.scala.remote.Main$.serverLogic(Main.scala:165)
at org.jetbrains.jps.incremental.scala.remote.Main$.nailMain(Main.scala:105)
at org.jetbrains.jps.incremental.scala.remote.Main.nailMain(Main.scala)
at jdk.internal.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at com.facebook.nailgun.NGSession.runImpl(NGSession.java:312)
at com.facebook.nailgun.NGSession.run(NGSession.java:198)

[slandelle]

When you imported your project in IntelliJ, you’ve selected Scala 3 while Gatling works with Scala 2. You have to reimport and select the proper Scala version.

Critical recommendation: if you’re not a Scala developper, go with Gatling Java, not Gatling Scala.

[Reet]

Thank you for the solution and recommendation.