Charter 18 error: Publisher is only available in iOS 13.0

‘Publisher’ is only available in iOS 13.0 or newer

extension Publisher {

help me please

Hi Felipe, the Publisher protocol is available on iOS 13 or later. You can check the availability of this type in apple’s documentation: Apple Developer Documentation

You’ll need to update your deployment target to be iOS 13. You can do this by selecting the project file in Xcode, select “Build Settings”, and then do a search on “iOS”. You can update your deployment target from there.