You didn't have all right dependencies for your project.
Your akka-actor dependency absolutely CAN NOT be a different version than your other dependencies. And any dependencies you add absolutely CAN NOT be reliant on different versions of akka either or you'll have a very messed up dependency tree.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.