Application tier migration issues

If you encounter problems during the migration of the application tier, review the following issues:

• Troubleshoot: Error logged during application migration
  Application migration fails because of an incorrectly expanded EAR file.

• Troubleshoot: Instances do not start properly due to port conflicts
  After migrating to WebSphere Commerce v6, the instance does not start properly. An address already in use message is logged.

• Troubleshoot: Message appears when running the WCIM script
  While migrating a start payment remote backup message is logged.

• Troubleshoot: Errors in log file after starting IBM HTTP Server
  After migrating the application tier, you attempt to launch the HTTP server but VirtualHost error messages are logged.