{"action":"created","issue":{"url":"https://api.github.com/repos/mathnet/mathnet-numerics/issues/299","labels_url":"https://api.github.com/repos/mathnet/mathnet-numerics/issues/299/labels{/name}","comments_url":"https://api.github.com/repos/mathnet/mathnet-numerics/issues/299/comments","events_url":"https://api.github.com/repos/mathnet/mathnet-numerics/issues/299/events","html_url":"https://github.com/mathnet/mathnet-numerics/issues/299","id":63220295,"number":299,"title":"MathNet.Numerics.FSharp doesn't work on .NET 4.0.0.0","user":{"login":"wayoung","id":11572038,"avatar_url":"https://avatars.githubusercontent.com/u/11572038?v=3","gravatar_id":"","url":"https://api.github.com/users/wayoung","html_url":"https://github.com/wayoung","followers_url":"https://api.github.com/users/wayoung/followers","following_url":"https://api.github.com/users/wayoung/following{/other_user}","gists_url":"https://api.github.com/users/wayoung/gists{/gist_id}","starred_url":"https://api.github.com/users/wayoung/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wayoung/subscriptions","organizations_url":"https://api.github.com/users/wayoung/orgs","repos_url":"https://api.github.com/users/wayoung/repos","events_url":"https://api.github.com/users/wayoung/events{/privacy}","received_events_url":"https://api.github.com/users/wayoung/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2015-03-20T12:28:55Z","updated_at":"2015-03-20T23:43:00Z","closed_at":"2015-03-20T20:19:21Z","body":"Contrary to the claims on the download site, MathNet.Numerics.FSharp does not seem to be compatible with .NET 4.0.0.0. Intellisense doesn't pick up any error, but when I try and build a project in FSharp with .NET 4.0.0.0, it says that it needs FSharp Core 4.3.1.0 or something like that. I tried this in VS 2010, and it did not work. Then I upgraded to VS2013 it seemed to work better, but my company can  only use VS2010 in production, which only goes up to .NET 4.0.0.0. It would be nice to have a version of MathNet.Numerics.FSharp that is truly dependent on version 4.0.0.0. Or at least, a warning put up on the site that only users of VS2012 and higher can use it because VS2010 can only handle 4.0.0.0 stuff."},"comment":{"url":"https://api.github.com/repos/mathnet/mathnet-numerics/issues/comments/84195911","html_url":"https://github.com/mathnet/mathnet-numerics/issues/299#issuecomment-84195911","issue_url":"https://api.github.com/repos/mathnet/mathnet-numerics/issues/299","id":84195911,"user":{"login":"wayoung","id":11572038,"avatar_url":"https://avatars.githubusercontent.com/u/11572038?v=3","gravatar_id":"","url":"https://api.github.com/users/wayoung","html_url":"https://github.com/wayoung","followers_url":"https://api.github.com/users/wayoung/followers","following_url":"https://api.github.com/users/wayoung/following{/other_user}","gists_url":"https://api.github.com/users/wayoung/gists{/gist_id}","starred_url":"https://api.github.com/users/wayoung/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wayoung/subscriptions","organizations_url":"https://api.github.com/users/wayoung/orgs","repos_url":"https://api.github.com/users/wayoung/repos","events_url":"https://api.github.com/users/wayoung/events{/privacy}","received_events_url":"https://api.github.com/users/wayoung/received_events","type":"User","site_admin":false},"created_at":"2015-03-20T23:43:00Z","updated_at":"2015-03-20T23:43:00Z","body":"I just figured it out. When I install using\r\n\r\n    Install-Package MathNet.Numerics.FSharp\r\n\r\nIt also installs FSharp.Core 3.1.2.1, which is not supported by Visual Studio 2010. It needs Visual Studio 2012 or higher. Thus, while it is compatible with .NET 4.0, it is not compatible with Visual Studio 2010. It will work perfectly in Visual Studio 2012 or Visual Studio 2013 in a .NET 4.0 build. Again, the problem only shows itself when I try to build an F# library."}}