I want to migrate from Widlfly 8.1.0.Final to Wildfly 14.0.0.Final, as suggested above I am using jboss-server-migration-1.6.0.Final only and downloaded "EE 8 Full & Web Distribution" for my target, but still getting below error, how to resolve this?

Server migration starting... ERROR Migration failed: org.jboss.migration.core.ServerMigrationFailureException: java.lang.IllegalArgumentException: WFCMTOOL000004: Server name = WildFly Full, version = 14.0.0.Final does not support migration from server name = WildFly, version = 8.1.0.Final. at org.jboss.migration.core.task.TaskExecutionImpl.run(TaskExecutionImpl.java:174) [jboss-server-migration-core-1.6.0.Final.jar:1.6.0.Final] at org.jboss.migration.core.ServerMigration.run(ServerMigration.java:160) [jboss-server-migration-core-1.6.0.Final.jar:1.6.0.Final] at org.jboss.migration.cli.CommandLineServerMigration.main(CommandLineServerMigration.java:131) [jboss-server-migration-cli-1.6.0.Final.jar:1.6.0.Final] Caused by: java.lang.IllegalArgumentException: WFCMTOOL000004: Server name = WildFly Full, version = 14.0.0.Final does not support migration from server name = WildFly, version = 8.1.0.Final. at org.jboss.migration.core.AbstractServer.migrate(AbstractServer.java:63) [jboss-server-migration-core-1.6.0.Final.jar:1.6.0.Final] at org.jboss.migration.wfly10.WildFlyServer10.migrate(WildFlyServer10.java:42) [jboss-server-migration-wildfly10.0-1.6.0.Final.jar:1.6.0.Final] at org.jboss.migration.core.ServerMigration$1.run(ServerMigration.java:153) [jboss-server-migration-core-1.6.0.Final.jar:1.6.0.Final] at org.jboss.migration.core.task.TaskExecutionImpl.run(TaskExecutionImpl.java:169) [jboss-server-migration-core-1.6.0.Final.jar:1.6.0.Final] ... 2 more