I am having absurd problems since updating to Xcode 9.1.
Opening playgrounds from the 'App Development with Swift' curriculum yields completely broken results, as you can see in the following image.
as you can see there is no functioning button.
Also, when I create a new empty playground (iOS, empty), I get greeted by the usual "Import UIKit" line but then the compiler tells me "UIKit no such module exists".
Could anyone shed some light on all of this? I run Xcode 9.1 on a 2016 15" MacBook Pro, with macOS 10.12.6.
Thanks
UPDATE: downloaded Xcode v 9.0 and v 8.3.2. 9.0 doesn't have the issue with the playgrounds and 8.3.2 doesn't have the issue with the TouchBar.