Migration Guide Red Hat JBoss Enterprise Application Platform 8.0 Red Hat Customer Portal
3.2.1. Migrating to JBoss EAP 8.0
Navigate to the MIGRATION_TOOL_HOME/bin directory <--?  there is no bin directory in jboss-eap-8.0.0-server-migration.zip
openjdk version "11.0.22" 2024-01-16
OpenJDK Runtime Environment Temurin-11.0.22+7 (build 11.0.22+7)
OpenJDK 64-Bit Server VM Temurin-11.0.22+7 (build 11.0.22+7, mixed mode)

OK the scrip boss-server-migration is in main directory 
$ls
configuration/  jboss-server-migration.bat  jboss-server-migration.ps1  jboss-server-migration.sh*  lib/

I execute and receive a message, please help what should I do, thank you 
$ ./jboss-server-migration.sh --source $EAP_PREVIOUS_HOME --target $EAP_NEW_HOME
Error: Could not find or load main class org.jboss.migration.cli.CommandLineServerMigration
Caused by: java.lang.ClassNotFoundException: org.jboss.migration.cli.CommandLineServerMigration