[keycloak-user] upgrade keycloak, elytron issue

[mj]

Hi,

We're running keycloak 4.0.0, and were trying to upgrade straight to 
latest, but it failed. Then we tried upgrading to latest release 4.8.3 
first, but it gave the same error, namely:

> root at kc:/opt/keycloak-4.8.3.Final# bin/jboss-cli.sh --file=bin/migrate-standalone.cli 
> *** Begin Migration ***
> 
> Adding eviction strategy to keycloak users cache container...
> {"outcome" => "success"}
> {"outcome" => "success"}
> 
> Updating authorization cache container..
> {"outcome" => "success"}
> {"outcome" => "success"}
> 
> Adding spi=userFederatedStorage...
> {"outcome" => "success"}
> 
> Updating eviction and expiration in local-cache=keys...
> {"outcome" => "success"}
> {"outcome" => "success"}
> {"outcome" => "success"}
> 
> Adding eviction strategy to keycloak realms cache...
> {"outcome" => "success"}
> {"outcome" => "success"}
> 
> Removing declaration for userFederatedStorage SPI
> {"outcome" => "success"}
> 
> Updating eviction in local-cache=authorization...
> {"outcome" => "success"}
> 
> Adding spi=hostname...
> {"outcome" => "success"}
> {"outcome" => "success"}
> 
> Adding permission-set=login-permission to elytron
> {"outcome" => "success"}
> {"outcome" => "success"}
> {
>     "outcome" => "failed",
>     "failure-description" => "WFLYCTL0216: Management resource '[
>     (\"subsystem\" => \"elytron\"),
>     (\"simple-permission-mapper\" => \"default-permission-mapper\")
> ]' not found",
>     "rolled-back" => true
> }

We did some google, but found no clear answer. Can anyone tell us why 
the cannot fails, with the above error?

Thanks!

MJ