chetanmeh opened a new issue #4315: Unify version of various Akka modules URL: https://github.com/apache/incubator-openwhisk/issues/4315 While working on PR #4314 which uses [akka-stream-kafka][1] which in turn uses latest Akka 2.5.21 following warning is seen on startup ``` [2019-02-28T20:59:44.394Z] [WARN] Detected possible incompatible versions on the classpath. Please note that a given Akka version MUST be the same across all modules of Akka that you are using, e.g. if you use [2.5.21] all other modules that are released together MUST be of the same version. Make sure you're using a compatible set of libraries. Possibly conflicting versions [2.5.3, 2.5.21, 2.5.12, 2.5.7] in libraries [akka-cluster-metrics:2.5.3, akka-protobuf:2.5.21, akka-actor:2.5.21, akka-slf4j:2.5.12, akka-remote:2.5.7, akka-cluster:2.5.7, akka-distributed-data:2.5.3, akka-stream:2.5.21, akka-stream-testkit:2.5.21, akka-cluster-tools:2.5.3] ``` It seems currently we have 2 different set of Akka version used * akka-stream - 2.5.12 (above shows 2.5.21 due to alpakka dep) * akka-cluster - 2.5.7 via mesos-actor dep We should unify the version and also at same time now switch to latest Akka stack version i.e. * Akka Stream 2.5.21 (from 2.5.12) * Akka HTTP - 10.1.7 (from 10.1.1) * Scala 2.12.8 (from 2.12.7) [1]: https://doc.akka.io/docs/akka-stream-kafka/current/home.html
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