I'm testing creating new themes in Drupal 8 and I'd like to know the very minimum it takes to create one that can be enabled. I'm not worried about any actual styling yet.
I've created a theme folder in themes called uktheme and I currently have a uktheme.info.yml file in that folder.
the contents of that file are
name: UK Theme type: theme description: 'Test theme' package: Core regions: header: Header primary_menu: 'Primary Menu' feature: 'Feature' content: 'Content' page_bottom: 'Page Bottom' footer_first: 'Footer first' footer_second: 'Footer second' footer_third: 'Footer third'
However I receive
The website encountered an unexpected error. Please try again later.
when attempting to go into the appearance settings. I do not believe it's my folder structure and location because I successfully created another theme copying the content of Bartik.