{"action":"opened","issue":{"url":"https://api.github.com/repos/dotnet/corefx/issues/5952","repository_url":"https://api.github.com/repos/dotnet/corefx","labels_url":"https://api.github.com/repos/dotnet/corefx/issues/5952/labels{/name}","comments_url":"https://api.github.com/repos/dotnet/corefx/issues/5952/comments","events_url":"https://api.github.com/repos/dotnet/corefx/issues/5952/events","html_url":"https://github.com/dotnet/corefx/issues/5952","id":131975363,"number":5952,"title":"System.Runtime.Numerics Nuget package doesn't 'work' on desktop","user":{"login":"AArnott","id":3548,"avatar_url":"https://avatars.githubusercontent.com/u/3548?v=3","gravatar_id":"","url":"https://api.github.com/users/AArnott","html_url":"https://github.com/AArnott","followers_url":"https://api.github.com/users/AArnott/followers","following_url":"https://api.github.com/users/AArnott/following{/other_user}","gists_url":"https://api.github.com/users/AArnott/gists{/gist_id}","starred_url":"https://api.github.com/users/AArnott/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AArnott/subscriptions","organizations_url":"https://api.github.com/users/AArnott/orgs","repos_url":"https://api.github.com/users/AArnott/repos","events_url":"https://api.github.com/users/AArnott/events{/privacy}","received_events_url":"https://api.github.com/users/AArnott/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-02-07T15:13:36Z","updated_at":"2016-02-07T15:13:36Z","closed_at":null,"body":"When I install the System.Runtime.Numerics package to a portable library, I can use `BigInteger`. But when I install the same package to a net45 targeted project, no reference is added. \r\n\r\n.NET 4.5 includes System.Numerics.dll in the framework. But in a project.json world where we try to express all references as packages, and such a facade package exists for BigInteger, I'm surprised it doesn't work, and I have to add the System.numerics.dll reference manually.\r\n\r\nIs this by design?"}}