Hello, I’m working with swift in this challenge, and I get an error when conforming to AdditiveArithmetic protocol. It works fine in my Xcode editor (Version 12.2 (12B45b), swift 5), but I get “type ‘List’ does not conform to protocol 'AdditiveArithmetic’sourcekitd” in the coding game editor during compilation. this protocol is available in Xcode since v10.2 as mentioned here https://developer.apple.com/documentation/swift/additivearithmetic#see-also. It seems like this protocol has been added in version 5 of the swift standard library as the documentation here https://swiftdoc.org/v5.1/protocol/additivearithmetic/ is not available for previous versions.
Can you confirm that the coding game system uses the standard swift library and which version of it please ?
EDIT : I found a post where it states that the swift language has been updated to v5.1.1 here Languages update
In the end I still don’t know why I get an error message.