{"action":"opened","issue":{"url":"https://api.github.com/repos/torch/nn/issues/541","labels_url":"https://api.github.com/repos/torch/nn/issues/541/labels{/name}","comments_url":"https://api.github.com/repos/torch/nn/issues/541/comments","events_url":"https://api.github.com/repos/torch/nn/issues/541/events","html_url":"https://github.com/torch/nn/issues/541","id":123584808,"number":541,"title":"\"Attempt to call field 'SpatialMaxUnpooling_updateOutput'\"","user":{"login":"gpleiss","id":824157,"avatar_url":"https://avatars.githubusercontent.com/u/824157?v=3","gravatar_id":"","url":"https://api.github.com/users/gpleiss","html_url":"https://github.com/gpleiss","followers_url":"https://api.github.com/users/gpleiss/followers","following_url":"https://api.github.com/users/gpleiss/following{/other_user}","gists_url":"https://api.github.com/users/gpleiss/gists{/gist_id}","starred_url":"https://api.github.com/users/gpleiss/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gpleiss/subscriptions","organizations_url":"https://api.github.com/users/gpleiss/orgs","repos_url":"https://api.github.com/users/gpleiss/repos","events_url":"https://api.github.com/users/gpleiss/events{/privacy}","received_events_url":"https://api.github.com/users/gpleiss/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-12-23T01:17:59Z","updated_at":"2015-12-23T01:17:59Z","closed_at":null,"body":"When I try using the SpatialMaxUnpooling module, I get the following error:\r\n\r\n```\r\n...s/torch/install/share/lua/5.1/nn/SpatialMaxUnpooling.lua:26: attempt to call field 'SpatialMaxUnpooling_updateOutput' (a nil value)\r\n```\r\n\r\nI get this error whether or not I'm using cuda."}}