{"action":"created","issue":{"url":"https://api.github.com/repos/kliment/Printrun/issues/671","labels_url":"https://api.github.com/repos/kliment/Printrun/issues/671/labels{/name}","comments_url":"https://api.github.com/repos/kliment/Printrun/issues/671/comments","events_url":"https://api.github.com/repos/kliment/Printrun/issues/671/events","html_url":"https://github.com/kliment/Printrun/issues/671","id":84197777,"number":671,"title":"Pronterface will not connect to 3D printer","user":{"login":"WilliamFH","id":12720613,"avatar_url":"https://avatars.githubusercontent.com/u/12720613?v=3","gravatar_id":"","url":"https://api.github.com/users/WilliamFH","html_url":"https://github.com/WilliamFH","followers_url":"https://api.github.com/users/WilliamFH/followers","following_url":"https://api.github.com/users/WilliamFH/following{/other_user}","gists_url":"https://api.github.com/users/WilliamFH/gists{/gist_id}","starred_url":"https://api.github.com/users/WilliamFH/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/WilliamFH/subscriptions","organizations_url":"https://api.github.com/users/WilliamFH/orgs","repos_url":"https://api.github.com/users/WilliamFH/repos","events_url":"https://api.github.com/users/WilliamFH/events{/privacy}","received_events_url":"https://api.github.com/users/WilliamFH/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-06-02T20:28:52Z","updated_at":"2015-06-02T20:30:43Z","closed_at":null,"body":"Whenever I try to connect my 3D printer (through Pronterface) I get this error message:\r\n\r\nConnecting...\r\n[ERROR] Could not connect to /dev/ttyACM0 at baudrate 250000:\r\nSerial error: could not open port /dev/ttyACM0: [Errno 13] Permission denied: '/dev/ttyACM0'\r\n\r\nI have tried varying the baudrate but that has not helped.\r\n\r\nAlso whenever I open Pronterface this messgae appears in the Terminal: \r\n\r\nWARNING:root:Memory-efficient GCoder implementation unavailable: No module named gcoder_line\r\n\r\ni have been trying to crack this all day but have had no success. I am not very experienced with this sort of thing. So any help would be much appreciated."},"comment":{"url":"https://api.github.com/repos/kliment/Printrun/issues/comments/108089723","html_url":"https://github.com/kliment/Printrun/issues/671#issuecomment-108089723","issue_url":"https://api.github.com/repos/kliment/Printrun/issues/671","id":108089723,"user":{"login":"iXce","id":1085885,"avatar_url":"https://avatars.githubusercontent.com/u/1085885?v=3","gravatar_id":"","url":"https://api.github.com/users/iXce","html_url":"https://github.com/iXce","followers_url":"https://api.github.com/users/iXce/followers","following_url":"https://api.github.com/users/iXce/following{/other_user}","gists_url":"https://api.github.com/users/iXce/gists{/gist_id}","starred_url":"https://api.github.com/users/iXce/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/iXce/subscriptions","organizations_url":"https://api.github.com/users/iXce/orgs","repos_url":"https://api.github.com/users/iXce/repos","events_url":"https://api.github.com/users/iXce/events{/privacy}","received_events_url":"https://api.github.com/users/iXce/received_events","type":"User","site_admin":false},"created_at":"2015-06-02T20:30:43Z","updated_at":"2015-06-02T20:30:43Z","body":"definitely looks like an user permission issue. You seem to not have access to /dev/ttyACM0. What does ``ls -lah /dev/ttyACM0`` shows ?"}}