public static void Start() { var config = ConfigurationFactory.ParseString(@" akka.persistence { journal { plugin = ""akka.persistence.journal.mongodb"" mongodb { connection-string = ""mongodb://127.0.0.1:27017/example"" } } }"); ExampleSystem = ActorSystem.Create("ExampleSystem", config); MongoDbPersistence.Get(ExampleSystem); ExampleActor = ExampleSystem.ActorOf <ExampleActor>(); }