{"issue":{"state":"open","created_at":"2011-11-30T15:52:12Z","updated_at":"2011-11-30T15:52:12Z","comments":0,"user":{"gravatar_id":"c169c6bbb274d3b4de9b1954d3799f2e","id":420045,"url":"https://api.github.com/users/martcot","avatar_url":"https://secure.gravatar.com/avatar/c169c6bbb274d3b4de9b1954d3799f2e?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","login":"martcot"},"body":"I got this error when I want to use admin classes.","assignee":null,"id":2403392,"pull_request":{"patch_url":null,"html_url":null,"diff_url":null},"number":162,"labels":[],"title":"'mptt_admin' is not a valid tag library: ImportError raised loading mptt.templatetags.mptt_admin: cannot import name result_hidden_fields","closed_at":null,"html_url":"https://github.com/django-mptt/django-mptt/issues/162","url":"https://api.github.com/repos/django-mptt/django-mptt/issues/162","milestone":null},"action":"opened"}