Hi all, I've tried a migration of keycloak-server.json to keycloak-server subsystem following [1]. I had to remove the default content of keycloak-server subsystem to make it work. <subsystem xmlns="urn:jboss:domain:keycloak-server:1.1"> <web-context>auth</web-context> </subsystem> When I left the content unchanged I got [standalone@embedded /] /subsystem=keycloak-server/:migrate-json { "outcome" => "failed", "failure-description" => "WFLYCTL0212: Duplicate resource [ (\"subsystem\" => \"keycloak-server\"), (\"theme\" => \"defaults\") ]", "rolled-back" => true } The question is if it is required step. If so it should be added to the docs [1], if not I'll create a jira. Vlasta [1] https://keycloak.gitbooks.io/server-adminstration-guide/content/v/2.2/top...