I am trying to use a Bootswatch theme in an Angular 5 project. I am using both Bootswatch and Bootstrap versions 4.0.0-beta-2. I have installed both via npm and have imported the _variables.scss and _bootswatch.scss in my styles.scss using the usual angular-cli/webpack conventions in my main styles.scss. I also import the relevant theme bootstrap.min.css into this file, and I add it to the styles[] array in angular.cli.json.
During build I get:
@include box-shadow(none);
^
No mixin named box-shadow
and a broken build.