gatling 2.2.2 IDEPathHelper error

I am getting below error in 2.2.2

08:56:26.458 [main][ERROR][ZincCompiler.scala:141] i.g.c.ZincCompiler$ - /Software/gatling/sg-gatling-load/gatling-themes/gateload-sim/src/test/scala/IDEPathHelper.scala:3: object PathHelper is not a member of package io.gatling.core.util
08:56:26.459 [main][ERROR][ZincCompiler.scala:141] i.g.c.ZincCompiler$ - import io.gatling.core.util.PathHelper._
08:56:26.460 [main][ERROR][ZincCompiler.scala:141] i.g.c.ZincCompiler$ - ^
08:56:26.469 [main][ERROR][ZincCompiler.scala:141] i.g.c.ZincCompiler$ - /Software/gatling/sg-gatling-load/gatling-themes/gateload-sim/src/test/scala/IDEPathHelper.scala:8: value ancestor is not a member of java.nio.file.Path
08:56:26.470 [main][ERROR][ZincCompiler.scala:141] i.g.c.ZincCompiler$ - val projectRootDir = gatlingConfUrl.ancestor(3)