{"action":"created","issue":{"url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1674","repository_url":"https://api.github.com/repos/AutoMapper/AutoMapper","labels_url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1674/labels{/name}","comments_url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1674/comments","events_url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1674/events","html_url":"https://github.com/AutoMapper/AutoMapper/issues/1674","id":175778644,"number":1674,"title":"Missing type map configuration or unsupported mapping","user":{"login":"maurosampietro","id":15122144,"avatar_url":"https://avatars.githubusercontent.com/u/15122144?v=3","gravatar_id":"","url":"https://api.github.com/users/maurosampietro","html_url":"https://github.com/maurosampietro","followers_url":"https://api.github.com/users/maurosampietro/followers","following_url":"https://api.github.com/users/maurosampietro/following{/other_user}","gists_url":"https://api.github.com/users/maurosampietro/gists{/gist_id}","starred_url":"https://api.github.com/users/maurosampietro/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/maurosampietro/subscriptions","organizations_url":"https://api.github.com/users/maurosampietro/orgs","repos_url":"https://api.github.com/users/maurosampietro/repos","events_url":"https://api.github.com/users/maurosampietro/events{/privacy}","received_events_url":"https://api.github.com/users/maurosampietro/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2016-09-08T15:04:59Z","updated_at":"2016-09-08T15:16:51Z","closed_at":null,"body":"I'm trying to map a codefirst entityframework class back and forth its DTO:\r\n\r\n```\r\npublic class MyDbEntity{\r\n    public int Id{get;set;}\r\n    public BindingList<OtherEntity>{get;set;}\r\n}\r\n\r\npublic class MyDbEntityDto{\r\n    public int Id{get;set;}\r\n    public BindingList<OtherEntityDto>{get;set;}\r\n}\r\n```\r\n\r\nI can map from EF to DTO but not back (DTO to EF) and when I try I get the exception in the subject.\r\nWhy is it happening? How can I workaround?\r\n"},"comment":{"url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/comments/245632162","html_url":"https://github.com/AutoMapper/AutoMapper/issues/1674#issuecomment-245632162","issue_url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1674","id":245632162,"user":{"login":"lbargaoanu","id":4517428,"avatar_url":"https://avatars.githubusercontent.com/u/4517428?v=3","gravatar_id":"","url":"https://api.github.com/users/lbargaoanu","html_url":"https://github.com/lbargaoanu","followers_url":"https://api.github.com/users/lbargaoanu/followers","following_url":"https://api.github.com/users/lbargaoanu/following{/other_user}","gists_url":"https://api.github.com/users/lbargaoanu/gists{/gist_id}","starred_url":"https://api.github.com/users/lbargaoanu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lbargaoanu/subscriptions","organizations_url":"https://api.github.com/users/lbargaoanu/orgs","repos_url":"https://api.github.com/users/lbargaoanu/repos","events_url":"https://api.github.com/users/lbargaoanu/events{/privacy}","received_events_url":"https://api.github.com/users/lbargaoanu/received_events","type":"User","site_admin":false},"created_at":"2016-09-08T15:16:51Z","updated_at":"2016-09-08T15:16:51Z","body":"There is no need for a database, just the AutoMapper part. Well, the message should tell you what map is missing :)"}}
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