{"action":"created","issue":{"url":"https://api.github.com/repos/plk/biblatex-apa/issues/17","repository_url":"https://api.github.com/repos/plk/biblatex-apa","labels_url":"https://api.github.com/repos/plk/biblatex-apa/issues/17/labels{/name}","comments_url":"https://api.github.com/repos/plk/biblatex-apa/issues/17/comments","events_url":"https://api.github.com/repos/plk/biblatex-apa/issues/17/events","html_url":"https://github.com/plk/biblatex-apa/issues/17","id":130784088,"number":17,"title":"Warn when `backend=bibtex`","user":{"login":"tmalsburg","id":3817450,"avatar_url":"https://avatars.githubusercontent.com/u/3817450?v=3","gravatar_id":"","url":"https://api.github.com/users/tmalsburg","html_url":"https://github.com/tmalsburg","followers_url":"https://api.github.com/users/tmalsburg/followers","following_url":"https://api.github.com/users/tmalsburg/following{/other_user}","gists_url":"https://api.github.com/users/tmalsburg/gists{/gist_id}","starred_url":"https://api.github.com/users/tmalsburg/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tmalsburg/subscriptions","organizations_url":"https://api.github.com/users/tmalsburg/orgs","repos_url":"https://api.github.com/users/tmalsburg/repos","events_url":"https://api.github.com/users/tmalsburg/events{/privacy}","received_events_url":"https://api.github.com/users/tmalsburg/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2016-02-02T19:08:19Z","updated_at":"2016-03-03T13:26:49Z","closed_at":"2016-03-03T13:26:49Z","body":"Many users assume that either bibtex or biber can be used as the backend with biblatex.  However, bibtex is not anymore supported with the apa style.  When a user tries `backend=bibtex`, the error message is\r\n\r\n    ! Undefined control sequence.\r\n    l.231 \\DeclareStyleSourcemap\r\n                            {\r\n\r\nwhich is very opaque.  Eventually, I found the relevant piece of information in the biblatex-apa documentation but it cost me a fair bit of time.\r\n\r\nIt think it would he helpful if biblatex-apa could emit a warning message when the user attempts to use bibtex.\r\n\r\nBy the way, thank you for biblatex, biblatex-apa, and biber.  It's a great pleasure to work with them.\r\n"},"comment":{"url":"https://api.github.com/repos/plk/biblatex-apa/issues/comments/191761180","html_url":"https://github.com/plk/biblatex-apa/issues/17#issuecomment-191761180","issue_url":"https://api.github.com/repos/plk/biblatex-apa/issues/17","id":191761180,"user":{"login":"plk","id":1220851,"avatar_url":"https://avatars.githubusercontent.com/u/1220851?v=3","gravatar_id":"","url":"https://api.github.com/users/plk","html_url":"https://github.com/plk","followers_url":"https://api.github.com/users/plk/followers","following_url":"https://api.github.com/users/plk/following{/other_user}","gists_url":"https://api.github.com/users/plk/gists{/gist_id}","starred_url":"https://api.github.com/users/plk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/plk/subscriptions","organizations_url":"https://api.github.com/users/plk/orgs","repos_url":"https://api.github.com/users/plk/repos","events_url":"https://api.github.com/users/plk/events{/privacy}","received_events_url":"https://api.github.com/users/plk/received_events","type":"User","site_admin":false},"created_at":"2016-03-03T13:26:49Z","updated_at":"2016-03-03T13:26:49Z","body":"Please try biblatex 3.3/biblatex 2.4. I have moved this test at time of invocation so it should be caught when the `\\RequireBiber` macro is run. You'll need biblatex-apa 6.8 for biblatex 2.4 (just submitted to CTAN)."}}