{"action":"opened","issue":{"url":"https://api.github.com/repos/gruntjs/grunt-contrib-less/issues/264","labels_url":"https://api.github.com/repos/gruntjs/grunt-contrib-less/issues/264/labels{/name}","comments_url":"https://api.github.com/repos/gruntjs/grunt-contrib-less/issues/264/comments","events_url":"https://api.github.com/repos/gruntjs/grunt-contrib-less/issues/264/events","html_url":"https://github.com/gruntjs/grunt-contrib-less/issues/264","id":64811785,"number":264,"title":"sourceMap creation displays \"undefined\" as filename","user":{"login":"mcnesium","id":476060,"avatar_url":"https://avatars.githubusercontent.com/u/476060?v=3","gravatar_id":"","url":"https://api.github.com/users/mcnesium","html_url":"https://github.com/mcnesium","followers_url":"https://api.github.com/users/mcnesium/followers","following_url":"https://api.github.com/users/mcnesium/following{/other_user}","gists_url":"https://api.github.com/users/mcnesium/gists{/gist_id}","starred_url":"https://api.github.com/users/mcnesium/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mcnesium/subscriptions","organizations_url":"https://api.github.com/users/mcnesium/orgs","repos_url":"https://api.github.com/users/mcnesium/repos","events_url":"https://api.github.com/users/mcnesium/events{/privacy}","received_events_url":"https://api.github.com/users/mcnesium/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-03-27T17:28:00Z","updated_at":"2015-03-27T17:28:00Z","closed_at":null,"body":"When running the task without declaring `sourceMapFilename` it correctly saves the mapfile with the same name as the css file adding `.map`to it, and also correctly sets the path in the css file, but in the console output it says **undefined**:\r\n\r\n    Running \"less:default\" (less) task\r\n    File undefined created.\r\n    File css/style.css created\r\n\r\nthis is using v1.0.0 and grunt v0.4.5"}}