As title, too bad I don't have experience on this one, anyone could br help? br pHere is my patch: br p desc 'Runs the quot;upquot; for a given migration VERSION.' br task :up =gt; :environment do br version= br if ENV[quot;NAMEquot;] br get_migrate_task_version(ENV[quot; NAMEquot;]) br else br ENV[quot;VERSIONquot;] ? ENV[quot;VERSIONquot;].to_i : nil