I am running Catalina (10.15) with XCode11. After creating a new project and selecting the option to Use SwiftUI, the file opens, but i get an error message in the preview window;
'Cannot preview in this file -- active scheme does not build this file. '
the info button says 'Select a scheme that builds a target which contains the current file, or add this file to a target that is built by the current scheme.'
i've tried opening numerous new projects, with and without unit tests, but none of them allow it to be previewed. I did see on Twitter that I'm not alone in seeing this issue. Any ideas on steps to troubleshoot it?
Thanks all.
Changing preview mode from "My mac" to iPhone Dynamic Island worked for me