The Akka dependencies are available from Akka’s secure library repository. To access them you need to use a secure, tokenized URL as specified at https://account.akka.io/token. To use TCP, you must add the following dependency in your project: sbtval AkkaVersion = "2.10.8" libraryDependencies += "com.typesafe.akka" %% "akka-actor" % AkkaVersionMaven<properties> <scala.binary.version>2.13</scala.bi