{"action":"opened","issue":{"url":"https://api.github.com/repos/lampepfl/dotty/issues/1510","repository_url":"https://api.github.com/repos/lampepfl/dotty","labels_url":"https://api.github.com/repos/lampepfl/dotty/issues/1510/labels{/name}","comments_url":"https://api.github.com/repos/lampepfl/dotty/issues/1510/comments","events_url":"https://api.github.com/repos/lampepfl/dotty/issues/1510/events","html_url":"https://github.com/lampepfl/dotty/issues/1510","id":176925944,"number":1510,"title":"Unformated tree in error emitted when abstract member is not defined.","user":{"login":"nicolasstucki","id":3648029,"avatar_url":"https://avatars.githubusercontent.com/u/3648029?v=3","gravatar_id":"","url":"https://api.github.com/users/nicolasstucki","html_url":"https://github.com/nicolasstucki","followers_url":"https://api.github.com/users/nicolasstucki/followers","following_url":"https://api.github.com/users/nicolasstucki/following{/other_user}","gists_url":"https://api.github.com/users/nicolasstucki/gists{/gist_id}","starred_url":"https://api.github.com/users/nicolasstucki/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nicolasstucki/subscriptions","organizations_url":"https://api.github.com/users/nicolasstucki/orgs","repos_url":"https://api.github.com/users/nicolasstucki/repos","events_url":"https://api.github.com/users/nicolasstucki/events{/privacy}","received_events_url":"https://api.github.com/users/nicolasstucki/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/lampepfl/dotty/labels/Error%20messages","name":"Error messages","color":"000000"}],"state":"open","locked":false,"assignee":{"login":"nicolasstucki","id":3648029,"avatar_url":"https://avatars.githubusercontent.com/u/3648029?v=3","gravatar_id":"","url":"https://api.github.com/users/nicolasstucki","html_url":"https://github.com/nicolasstucki","followers_url":"https://api.github.com/users/nicolasstucki/followers","following_url":"https://api.github.com/users/nicolasstucki/following{/other_user}","gists_url":"https://api.github.com/users/nicolasstucki/gists{/gist_id}","starred_url":"https://api.github.com/users/nicolasstucki/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nicolasstucki/subscriptions","organizations_url":"https://api.github.com/users/nicolasstucki/orgs","repos_url":"https://api.github.com/users/nicolasstucki/repos","events_url":"https://api.github.com/users/nicolasstucki/events{/privacy}","received_events_url":"https://api.github.com/users/nicolasstucki/received_events","type":"User","site_admin":false},"assignees":[{"login":"nicolasstucki","id":3648029,"avatar_url":"https://avatars.githubusercontent.com/u/3648029?v=3","gravatar_id":"","url":"https://api.github.com/users/nicolasstucki","html_url":"https://github.com/nicolasstucki","followers_url":"https://api.github.com/users/nicolasstucki/followers","following_url":"https://api.github.com/users/nicolasstucki/following{/other_user}","gists_url":"https://api.github.com/users/nicolasstucki/gists{/gist_id}","starred_url":"https://api.github.com/users/nicolasstucki/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nicolasstucki/subscriptions","organizations_url":"https://api.github.com/users/nicolasstucki/orgs","repos_url":"https://api.github.com/users/nicolasstucki/repos","events_url":"https://api.github.com/users/nicolasstucki/events{/privacy}","received_events_url":"https://api.github.com/users/nicolasstucki/received_events","type":"User","site_admin":false}],"milestone":null,"comments":0,"created_at":"2016-09-14T14:41:22Z","updated_at":"2016-09-14T14:41:22Z","closed_at":null,"body":"```scala\r\nabstract class Foo {\r\n  def f(i: Int): Unit\r\n}\r\nclass Bar extends Foo {\r\n  def f(i: String): Unit = ???\r\n}\r\n```\r\n\r\n```\r\nerror: class Bar needs to be abstract, since def f: (i: Int)Unit is not defined \r\n(Note that TypeRef(TermRef(ThisType(TypeRef(NoPrefix,<root>)),scala),Int) does not match TypeRef(TermRef(ThisType(TypeRef(NoPrefix,scala)),Predef),String))\r\nclass Bar extends Foo {\r\n      ^\r\n```\r\n\r\nNote that the types are printed as trees."}}
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