{"action":"opened","issue":{"url":"https://api.github.com/repos/magento/magento2/issues/7214","repository_url":"https://api.github.com/repos/magento/magento2","labels_url":"https://api.github.com/repos/magento/magento2/issues/7214/labels{/name}","comments_url":"https://api.github.com/repos/magento/magento2/issues/7214/comments","events_url":"https://api.github.com/repos/magento/magento2/issues/7214/events","html_url":"https://github.com/magento/magento2/issues/7214","id":185643981,"number":7214,"title":"Grunt:exec error on Magento 2.1.2 using custom theme","user":{"login":"sam-g-roberts","id":12782773,"avatar_url":"https://avatars.githubusercontent.com/u/12782773?v=3","gravatar_id":"","url":"https://api.github.com/users/sam-g-roberts","html_url":"https://github.com/sam-g-roberts","followers_url":"https://api.github.com/users/sam-g-roberts/followers","following_url":"https://api.github.com/users/sam-g-roberts/following{/other_user}","gists_url":"https://api.github.com/users/sam-g-roberts/gists{/gist_id}","starred_url":"https://api.github.com/users/sam-g-roberts/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sam-g-roberts/subscriptions","organizations_url":"https://api.github.com/users/sam-g-roberts/orgs","repos_url":"https://api.github.com/users/sam-g-roberts/repos","events_url":"https://api.github.com/users/sam-g-roberts/events{/privacy}","received_events_url":"https://api.github.com/users/sam-g-roberts/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-10-27T11:36:49Z","updated_at":"2016-10-27T11:36:49Z","closed_at":null,"body":"When running Grunt exec i've just started getting the below error. I've tried clearing out the var and the pub/static folders as well as running grunt:clean before exec. Any help would be much appreciated.\r\n\r\n`Processed Area: frontend, Locale: en_US, Theme: <vendor>/<theme>, File type: less.\r\n>> [InvalidArgumentException]                                                                                                                       \r\n>>   Verify entered values of the argument and options. Unable to resolve the source file for 'frontend/<vendor>/<theme>/en_US/css/styles-m.less'  \r\n>>                                                                                                                                                    \r\n>> \r\n>> \r\n>> dev:source-theme:deploy [--type=\"...\"] [--locale=\"...\"] [--area=\"...\"] [--theme=\"...\"] [file1] ... [fileN]\r\n>> Exited with code: 1.\r\nWarning: Task \"exec:custom_theme\" failed. Use --force to continue.\r\n`"}}
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