{"action":"closed","issue":{"url":"https://api.github.com/repos/HugoDaniel/timerep/issues/2","labels_url":"https://api.github.com/repos/HugoDaniel/timerep/issues/2/labels{/name}","comments_url":"https://api.github.com/repos/HugoDaniel/timerep/issues/2/comments","events_url":"https://api.github.com/repos/HugoDaniel/timerep/issues/2/events","html_url":"https://github.com/HugoDaniel/timerep/issues/2","id":5110794,"number":2,"title":"Cabal Install error with GHC 7.4.2 on Mac 10.7","user":{"login":"tatac1","id":261805,"avatar_url":"https://avatars.githubusercontent.com/u/261805?v=3","gravatar_id":"","url":"https://api.github.com/users/tatac1","html_url":"https://github.com/tatac1","followers_url":"https://api.github.com/users/tatac1/followers","following_url":"https://api.github.com/users/tatac1/following{/other_user}","gists_url":"https://api.github.com/users/tatac1/gists{/gist_id}","starred_url":"https://api.github.com/users/tatac1/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tatac1/subscriptions","organizations_url":"https://api.github.com/users/tatac1/orgs","repos_url":"https://api.github.com/users/tatac1/repos","events_url":"https://api.github.com/users/tatac1/events{/privacy}","received_events_url":"https://api.github.com/users/tatac1/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2012-06-17T07:54:51Z","updated_at":"2015-06-30T08:59:37Z","closed_at":"2015-06-30T08:59:37Z","body":"Hi Hugo\n\nI got the error message when installing,\n\nResolving dependencies...\nConfiguring rfc3339-1.0.4...\nPreprocessing library rfc3339-1.0.4...\nBuilding rfc3339-1.0.4...\n[1 of 1] Compiling Data.Time.RFC3339 ( Data/Time/RFC3339.hs, dist/build/Data/Time/RFC3339.o )\n\nData/Time/RFC3339.hs:60:10:\n    Illegal instance declaration for `RFC3339 String'\n      (All instance types must be of the form (T a1 ... an)\n       where a1 ... an are *distinct type variables*,\n       and each type variable appears at most once in the instance head.\n       Use -XFlexibleInstances if you want to disable this.)\n    In the instance declaration for `RFC3339 String'\ncabal: Error: some packages failed to install:\nrfc3339-1.0.4 failed during the building phase. The exception was:\nExitFailure 1\n\nI have confirm  \" {-# LANGUAGE TypeSynonymInstances, FlexibleInstances #-}\"  in the RFC3339.hs, it's no wired...\n\nHow can i solve it?\n\n\n"}}