# Akka 2.64 Persistence configuration (application.conf, and reference.conf) HELP!

**URL:** <https://discuss.akka.io/t/akka-2-64-persistence-configuration-application-conf-and-reference-conf-help/6262>\
**Category:** Akka Libraries\
**Created:** [April 13, 2020, 6:12pm UTC](https://discuss.akka.io/t/akka-2-64-persistence-configuration-application-conf-and-reference-conf-help/6262 "2020-04-13T18:12:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![RPGambit2](https://avatars.discourse-cdn.com/v4/letter/r/bc79bd/32.png) [@RPGambit2](https://discuss.akka.io/u/RPGambit2)\
**Post date:** [April 13, 2020, 6:12pm UTC](https://discuss.akka.io/t/akka-2-64-persistence-configuration-application-conf-and-reference-conf-help/6262/1 "2020-04-13T18:12:05Z")

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Hi. I am not sure if this is the correct place to ask this question. Please forgive me if it isn’t. I am ugrading to Akka Version 2.64 and I need to get my Akka Persistence working. Previously I was using version 0.55 and I am moving to 1.0.0-RC1.

Previous version:  
“com.typesafe.akka” %% “akka-persistence-cassandra” % “0.55”

Version I am going to:  
“com.typesafe.akka” %% “akka-persistence-cassandra” % “1.0.0-RC1”

I changed from sbt.version=0.13.16 to sbt.version=1.3.3

My previous application.conf contained:  
akka {  
persistence {  
cassandra {  
journal {  
plugin = “cassandra-journal”  
}  
snapshot {  
plugin = “cassandra-snapshot-store”  
}  
}  
}  
}

I am attempting to create my new application.conf, but keep getting errors. This is what it looks like: akka {  
persistence {  
journal {  
plugin = “akka.persistence.cassandra.journal.CassandraJournal”  
basic.request.timeout = 10 seconds  
basic.session-keyspace = “”${OurKeyspace}""  
}

```
snapshot {
  plugin = "akka.persistence.cassandra.snapshot.CassandraSnapshotStore"
  basic.request.timeout = 10 seconds
  basic.session-keyspace = ""${OurKeyspaceSnapshot}""
}

```

}

I am not sure if I need to make any changes to reference.conf with the new version. Currently it only contains the default values and since I am using a local version of cassandra:

datastax-java-driver {  
basic.contact-points = [“127.0.0.1:9042”]  
}

The error I am getting is:  
timestamp=14:10:27 app\_name=elkindexing env=ENVIRONMENT\_IS\_UNDEFINED mesos\_task\_id=Non-mesos-env log\_level=ERROR class\_name={akka.event.slf4j.Slf4jLogger$$anonfun$receive$1 $anonfun$applyOrElse$1} - message=Journal plugin [akka.persistence.cassandra.journal.CassandraJournal] configuration doesn’t exist.  
akka.actor.ActorInitializationException: akka://ElkIndexingSystem/user/ElkIndexingSourceMgr/elkIndexingSourceMgmtPersistActor: exception during creation  
at akka.actor.ActorInitializationException$.apply(Actor.scala:195)  
at akka.actor.ActorCell.create(ActorCell.scala:657)  
at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:509)  
at akka.actor.ActorCell.systemInvoke(ActorCell.scala:531)  
at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:294)  
at akka.dispatch.Mailbox.run(Mailbox.scala:229)  
at akka.dispatch.Mailbox.exec(Mailbox.scala:242)  
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)  
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)  
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)  
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)  
Caused by: java.lang.IllegalArgumentException: Journal plugin [akka.persistence.cassandra.journal.CassandraJournal] configuration doesn’t exist.  
at akka.persistence.Persistence$.verifyPluginConfigExists(Persistence.scala:175)  
at akka.persistence.Persistence.verifyJournalPluginConfigExists(Persistence.scala:275)  
at akka.persistence.Persistence.defaultJournalPluginId$lzycompute(Persistence.scala:220)  
at akka.persistence.Persistence.defaultJournalPluginId(Persistence.scala:217)  
at akka.persistence.Persistence.journalConfigFor(Persistence.scala:327)  
at akka.persistence.Eventsourced.init(Eventsourced.scala:97)  
at ElkIndexingCode.CommonActorsAndTraits.ElkIndexingSourceBlockPersistentActor.(ElkIndexingSourceBlockPersistentActor.scala:24)  
at ElkIndexingCode.CommonActorsAndTraits.ElkIndexingSourceManagementActor.$anonfun$InitOurSources$2(ElkIndexingSourceManagementActor.scala:105)  
at akka.actor.TypedCreatorFunctionConsumer.produce(IndirectActorProducer.scala:90)  
at akka.actor.Props.newActor(Props.scala:226)  
at akka.actor.ActorCell.newActor(ActorCell.scala:609)  
at akka.actor.ActorCell.create(ActorCell.scala:635)  
… 9 common frames omitted

Thank you so much for any help!!!

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<div class="post-metadata">

**Author:** ![patriknw](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.akka.io/patriknw/32/89_2.png) [@patriknw](https://discuss.akka.io/u/patriknw)\
**Post date:** [April 14, 2020, 3:00pm UTC](https://discuss.akka.io/t/akka-2-64-persistence-configuration-application-conf-and-reference-conf-help/6262/2 "2020-04-14T15:00:42Z")

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Have you seen the [migration guide](https://doc.akka.io/docs/akka-persistence-cassandra/current/migrations.html)?