{"action":"created","issue":{"url":"https://api.github.com/repos/yeoman/grunt-usemin/issues/521","labels_url":"https://api.github.com/repos/yeoman/grunt-usemin/issues/521/labels{/name}","comments_url":"https://api.github.com/repos/yeoman/grunt-usemin/issues/521/comments","events_url":"https://api.github.com/repos/yeoman/grunt-usemin/issues/521/events","html_url":"https://github.com/yeoman/grunt-usemin/issues/521","id":59435772,"number":521,"title":"Different sources attempting to write to the same destination","user":{"login":"erguotou520","id":7945757,"avatar_url":"https://avatars.githubusercontent.com/u/7945757?v=3","gravatar_id":"","url":"https://api.github.com/users/erguotou520","html_url":"https://github.com/erguotou520","followers_url":"https://api.github.com/users/erguotou520/followers","following_url":"https://api.github.com/users/erguotou520/following{/other_user}","gists_url":"https://api.github.com/users/erguotou520/gists{/gist_id}","starred_url":"https://api.github.com/users/erguotou520/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/erguotou520/subscriptions","organizations_url":"https://api.github.com/users/erguotou520/orgs","repos_url":"https://api.github.com/users/erguotou520/repos","events_url":"https://api.github.com/users/erguotou520/events{/privacy}","received_events_url":"https://api.github.com/users/erguotou520/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/yeoman/grunt-usemin/labels/waiting","name":"waiting","color":"006b75"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":11,"created_at":"2015-03-02T03:50:59Z","updated_at":"2015-07-24T23:04:11Z","closed_at":"2015-03-18T02:27:20Z","body":"I have css file(s) which is used in some different HTML files. I code the same blocks \r\n``` html\r\n<!-- build:css css/video/history/history.css -->\r\n<link rel=\"stylesheet\" href=\"video/history/history.css\" type=\"text/css\" />\r\n<!-- endbuild -->\r\n```\r\nWhen I run grunt target, I get this error:\r\n```javascript\r\nRunning \"useminPrepare:html\" (useminPrepare) task\r\nWarning: Different sources attempting to write to the same destination:\r\n {\r\n    \"dest\": \".tmp\\\\concat\\\\css\\\\video\\\\history\\\\history.css\",\r\n    \"src\": [\r\n        \"WebRoot\\\\pages\\\\candidate\\\\video\\\\history\\\\history.css\"\r\n    ]\r\n}\r\n```\r\nHow can I resolve this problem?"},"comment":{"url":"https://api.github.com/repos/yeoman/grunt-usemin/issues/comments/124759509","html_url":"https://github.com/yeoman/grunt-usemin/issues/521#issuecomment-124759509","issue_url":"https://api.github.com/repos/yeoman/grunt-usemin/issues/521","id":124759509,"user":{"login":"stevemao","id":6316590,"avatar_url":"https://avatars.githubusercontent.com/u/6316590?v=3","gravatar_id":"","url":"https://api.github.com/users/stevemao","html_url":"https://github.com/stevemao","followers_url":"https://api.github.com/users/stevemao/followers","following_url":"https://api.github.com/users/stevemao/following{/other_user}","gists_url":"https://api.github.com/users/stevemao/gists{/gist_id}","starred_url":"https://api.github.com/users/stevemao/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stevemao/subscriptions","organizations_url":"https://api.github.com/users/stevemao/orgs","repos_url":"https://api.github.com/users/stevemao/repos","events_url":"https://api.github.com/users/stevemao/events{/privacy}","received_events_url":"https://api.github.com/users/stevemao/received_events","type":"User","site_admin":false},"created_at":"2015-07-24T23:04:11Z","updated_at":"2015-07-24T23:04:11Z","body":"Same as @artuska except not putting `app/admin.html` in `useminPrepare`."}}