{"action":"closed","issue":{"url":"https://api.github.com/repos/aloiscochard/codex/issues/40","labels_url":"https://api.github.com/repos/aloiscochard/codex/issues/40/labels{/name}","comments_url":"https://api.github.com/repos/aloiscochard/codex/issues/40/comments","events_url":"https://api.github.com/repos/aloiscochard/codex/issues/40/events","html_url":"https://github.com/aloiscochard/codex/issues/40","id":98201968,"number":40,"title":"Unable to install codex with cabal","user":{"login":"MarcoSero","id":867996,"avatar_url":"https://avatars.githubusercontent.com/u/867996?v=3","gravatar_id":"","url":"https://api.github.com/users/MarcoSero","html_url":"https://github.com/MarcoSero","followers_url":"https://api.github.com/users/MarcoSero/followers","following_url":"https://api.github.com/users/MarcoSero/following{/other_user}","gists_url":"https://api.github.com/users/MarcoSero/gists{/gist_id}","starred_url":"https://api.github.com/users/MarcoSero/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MarcoSero/subscriptions","organizations_url":"https://api.github.com/users/MarcoSero/orgs","repos_url":"https://api.github.com/users/MarcoSero/repos","events_url":"https://api.github.com/users/MarcoSero/events{/privacy}","received_events_url":"https://api.github.com/users/MarcoSero/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-07-30T15:50:20Z","updated_at":"2015-08-12T08:34:55Z","closed_at":"2015-08-12T08:34:55Z","body":"I've been trying to install `codex` without success.\r\n\r\nThere seems to be a problem installing one of its dependencies, `mono-traversable`.\r\n\r\nThis is the log:\r\n```\r\nResolving dependencies...\r\nConfiguring mono-traversable-0.9.2.1...\r\nBuilding mono-traversable-0.9.2.1...\r\nFailed to install mono-traversable-0.9.2.1\r\nBuild log ( /Users/marco/.cabal/logs/mono-traversable-0.9.2.1.log ):\r\nConfiguring mono-traversable-0.9.2.1...\r\nBuilding mono-traversable-0.9.2.1...\r\nPreprocessing library mono-traversable-0.9.2.1...\r\n[1 of 7] Compiling Data.ByteVector  ( src/Data/ByteVector.hs, dist/build/Data/ByteVector.o )\r\n[2 of 7] Compiling Data.MonoTraversable ( src/Data/MonoTraversable.hs, dist/build/Data/MonoTraversable.o )\r\n\r\nsrc/Data/MonoTraversable.hs:93:48:\r\n    Module ‘Data.Semigroup’ does not export ‘Arg’\r\ncabal: Error: some packages failed to install\r\n```\r\n\r\nI'm using cabal version 1.20.0.2\r\nUnfortunately I can't upgrade because of a [different problem](https://github.com/kazu-yamamoto/ghc-mod/wiki/InconsistentCabalVersions) that new versions have with `ghc-mod`.\r\n\r\nHas anyone else seen this before?"}}