migrate from 7.1.0.GA to 7.4.0.GA

I have a problem with the migrate tool. it is not possible to migrate from 7.1.0.GA to 7.4.0.GA

Server migration starting...
09:47:17,858 ERROR [logger] Migration failed: org.jboss.migration.core.ServerMigrationFailureException: java.lang.IllegalArgumentException: WFCMTOOL000004: Server name = JBoss EAP, version = 7.4.0.GA does not support migration from server name = JBoss EAP, version = 7.1.0.GA.