{"action":"created","issue":{"url":"https://api.github.com/repos/haskell/cabal/issues/4593","repository_url":"https://api.github.com/repos/haskell/cabal","labels_url":"https://api.github.com/repos/haskell/cabal/issues/4593/labels{/name}","comments_url":"https://api.github.com/repos/haskell/cabal/issues/4593/comments","events_url":"https://api.github.com/repos/haskell/cabal/issues/4593/events","html_url":"https://github.com/haskell/cabal/issues/4593","id":241199220,"number":4593,"title":"happy can't be installed from a sandbox","user":{"login":"sol","id":461132,"avatar_url":"https://avatars0.githubusercontent.com/u/461132?v=3","gravatar_id":"","url":"https://api.github.com/users/sol","html_url":"https://github.com/sol","followers_url":"https://api.github.com/users/sol/followers","following_url":"https://api.github.com/users/sol/following{/other_user}","gists_url":"https://api.github.com/users/sol/gists{/gist_id}","starred_url":"https://api.github.com/users/sol/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sol/subscriptions","organizations_url":"https://api.github.com/users/sol/orgs","repos_url":"https://api.github.com/users/sol/repos","events_url":"https://api.github.com/users/sol/events{/privacy}","received_events_url":"https://api.github.com/users/sol/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-07-07T08:51:35Z","updated_at":"2017-07-07T09:13:38Z","closed_at":null,"body":"Steps to reproduce:\r\n```\r\n$ cabal unpack happy && cd happy-* && cabal sandbox init && cabal install --prefix ~/.bin\r\nUnpacking to happy-1.19.5/\r\nWriting a default package environment file to\r\n/home/sol/sandbox/haskell/happy-1.19.5/cabal.sandbox.config\r\nCreating a new sandbox at\r\n/home/sol/sandbox/haskell/happy-1.19.5/.cabal-sandbox\r\nResolving dependencies...\r\nNotice: installing into a sandbox located at\r\n/home/sol/sandbox/haskell/happy-1.19.5/.cabal-sandbox\r\nConfiguring mtl-2.2.1...\r\nBuilding mtl-2.2.1...\r\nInstalled mtl-2.2.1\r\nConfiguring happy-1.19.5...\r\nBuilding happy-1.19.5...\r\nFailed to install happy-1.19.5\r\nBuild log ( /home/sol/sandbox/haskell/happy-1.19.5/.cabal-sandbox/logs/happy-1.19.5.log ):\r\ncabal: Entering directory '.'\r\n[1 of 1] Compiling Main             ( dist/dist-sandbox-8adab01b/setup/setup.hs, dist/dist-sandbox-8adab01b/setup/Main.o )\r\nLinking ./dist/dist-sandbox-8adab01b/setup/setup ...\r\nConfiguring happy-1.19.5...\r\nBuilding happy-1.19.5...\r\nPreprocessing executable 'happy' for happy-1.19.5...\r\nsetup: The program 'happy' is required but it could not be found\r\ncabal: Leaving directory '.'\r\ncabal: Error: some packages failed to install:\r\nhappy-1.19.5 failed during the building phase. The exception was:\r\nExitFailure 1\r\n```"},"comment":{"url":"https://api.github.com/repos/haskell/cabal/issues/comments/313630612","html_url":"https://github.com/haskell/cabal/issues/4593#issuecomment-313630612","issue_url":"https://api.github.com/repos/haskell/cabal/issues/4593","id":313630612,"user":{"login":"23Skidoo","id":47439,"avatar_url":"https://avatars0.githubusercontent.com/u/47439?v=3","gravatar_id":"","url":"https://api.github.com/users/23Skidoo","html_url":"https://github.com/23Skidoo","followers_url":"https://api.github.com/users/23Skidoo/followers","following_url":"https://api.github.com/users/23Skidoo/following{/other_user}","gists_url":"https://api.github.com/users/23Skidoo/gists{/gist_id}","starred_url":"https://api.github.com/users/23Skidoo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/23Skidoo/subscriptions","organizations_url":"https://api.github.com/users/23Skidoo/orgs","repos_url":"https://api.github.com/users/23Skidoo/repos","events_url":"https://api.github.com/users/23Skidoo/events{/privacy}","received_events_url":"https://api.github.com/users/23Skidoo/received_events","type":"User","site_admin":false},"created_at":"2017-07-07T09:13:38Z","updated_at":"2017-07-07T09:13:38Z","body":"Looks like a duplicate of #4574."}}
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