{"action":"opened","issue":{"url":"https://api.github.com/repos/rollup/rollup/issues/75","labels_url":"https://api.github.com/repos/rollup/rollup/issues/75/labels{/name}","comments_url":"https://api.github.com/repos/rollup/rollup/issues/75/comments","events_url":"https://api.github.com/repos/rollup/rollup/issues/75/events","html_url":"https://github.com/rollup/rollup/issues/75","id":98707677,"number":75,"title":"simple re-export fails with `TypeError: Cannot read property 'isExternal' of undefined`","user":{"login":"Swatinem","id":580492,"avatar_url":"https://avatars.githubusercontent.com/u/580492?v=3","gravatar_id":"","url":"https://api.github.com/users/Swatinem","html_url":"https://github.com/Swatinem","followers_url":"https://api.github.com/users/Swatinem/followers","following_url":"https://api.github.com/users/Swatinem/following{/other_user}","gists_url":"https://api.github.com/users/Swatinem/gists{/gist_id}","starred_url":"https://api.github.com/users/Swatinem/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Swatinem/subscriptions","organizations_url":"https://api.github.com/users/Swatinem/orgs","repos_url":"https://api.github.com/users/Swatinem/repos","events_url":"https://api.github.com/users/Swatinem/events{/privacy}","received_events_url":"https://api.github.com/users/Swatinem/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-08-03T09:44:13Z","updated_at":"2015-08-03T09:44:13Z","closed_at":null,"body":"I have a very simple straightforward re-export like this:\r\n```js\r\nexport {json} from \"./xhr\"\r\n```\r\n\r\nThat fails with the following error:\r\n\r\n```\r\nTypeError: Cannot read property 'isExternal' of undefined\r\n    at Module.getCanonicalName (.gobble-build/01-rollup/1/rollup.js:1238:17)\r\n    at .gobble-build/01-rollup/1/rollup.js:2055:76\r\n```\r\n\r\nRenaming it like `export {json as json2} from \"./xhr\"` solves the problem however. So I would guess it some kind of naming conflict. Hopefully it will be solved by #71 or similar.\r\nI haven’t been able to create a reduced testcase so far :-("}}