Getting the error -> java.lang.ClassNotFoundException: nextgen.SetUpApplyFlowAndLottery

Gatling (Open-Source)
3

Moreover, the scala-faker_2.12 is not compabible with Scala 2.13 that required since Gatling 3.5.

You have to upgrade to:

<dependency>
  <groupId>com.github.pjfanning</groupId>
  <artifactId>scala-faker_2.13</artifactId>
  <version>0.5.3</version>
</dependency>