How to use 'remember entities' feature in lagom

I am trying to build lagom based solution for my company.
I am using Cassandra as p persistence solution and lagom features available for Cassandra.
This is great framework. However I tried to use remember entities sharding feature and I could not.
Could someone please explain me how it can be used?
Note: I have set configuration properly to run this feature. The problem I am getting is follow:

2019-06-12 11:35:03,825 ERROR akka.cluster.sharding.ShardRegion - When using remember-entities the shard id extractor must handle ShardRegion.StartEntity(id).
scala.MatchError: StartEntity(imo1) (of class akka.cluster.sharding.ShardRegion$StartEntity)
at com.lightbend.lagom.internal.scaladsl.persistence.AbstractPersistentEntityRegistry$$anonfun$2.apply(AbstractPersistentEntityRegistry.scala:67)

It seems the class AbstractPersistentEntityRegistry does not handle properly case for ShardRegion.StartEntity(id)

I could be wrong, of course.

Any help will be appreciated. Thanks in advance.

That could be improved in Lagom. It should handle StartEntity. Please open an issue in Lagom’s issue tracker. Quickest way to get it done would be to contribute a pull request. Thanks for reporting.

Thanks a lot, Patrick!
I will read rules to follow and contribute to the project with PR.
It may take a while - summer time, vacation and so on :slight_smile: