If you migrated to a newer version of Talend Administration Center and want to retrieve your existing projects, you may want to migrate these projects. Talend Administration Center allows you to select the projects to be migrated and to generate corresponding reports using the Commandline applications.
The Migration Check page of Talend Administration Center allows you to:
connect the previous version of your CommandLine application to the new one,
migrate each existing project,
generate and download a report for each migration.