Are you supporting "Codable" on Silver (on Visual Studio 2017)?

I have such code compiled and working on XCode 10

public struct server: Hashable, Codable

var country: String
var country_code: String
var ctrl_grp: [control_group]


but when try to compile on windows 7 (VS 2017, Winform application - lang Swift), it fails with this "Unknown type “Codable” !
What I have to Do ???

It’s on the list, but to do it in a way that supports all five languages and all platforms takes some additional planning, so I’m afraid this is not supported yet.