{"action":"closed","issue":{"url":"https://api.github.com/repos/typesafehub/activator/issues/1056","labels_url":"https://api.github.com/repos/typesafehub/activator/issues/1056/labels{/name}","comments_url":"https://api.github.com/repos/typesafehub/activator/issues/1056/comments","events_url":"https://api.github.com/repos/typesafehub/activator/issues/1056/events","html_url":"https://github.com/typesafehub/activator/issues/1056","id":93851988,"number":1056,"title":"Act. Distributed workers (Java) UnsupportedClassVersionError","user":{"login":"thealy","id":706792,"avatar_url":"https://avatars.githubusercontent.com/u/706792?v=3","gravatar_id":"","url":"https://api.github.com/users/thealy","html_url":"https://github.com/thealy","followers_url":"https://api.github.com/users/thealy/followers","following_url":"https://api.github.com/users/thealy/following{/other_user}","gists_url":"https://api.github.com/users/thealy/gists{/gist_id}","starred_url":"https://api.github.com/users/thealy/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/thealy/subscriptions","organizations_url":"https://api.github.com/users/thealy/orgs","repos_url":"https://api.github.com/users/thealy/repos","events_url":"https://api.github.com/users/thealy/events{/privacy}","received_events_url":"https://api.github.com/users/thealy/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-07-08T17:59:40Z","updated_at":"2015-07-08T18:18:27Z","closed_at":"2015-07-08T18:18:27Z","body":"Hi, Noob here. Working with fresh download of Activator on Ubuntu system running java version \"1.8.0_45\". All ok until the \"Run the Application\" step where workers are started in 3 terminal windows:\r\n\r\n./activator \"runMain worker.Main 3001\"\r\n\r\nThese all die with: java.lang.UnsupportedClassVersionError: worker/Main : Unsupported major.minor version 52.0\r\n\r\nDo I need to use an older Java version, or recompile something? \r\n\r\nThanks."}}