Angular CLI Generate Library with SASS
You can fix it by overriding schematics for your project in your angular.json like in the example below:
"example": { "root": "projects/example", "sourceRoot": "projects/example/src", "projectType": "library", "prefix": "exam", "schematics": { "@schematics/angular:component": { "styleext": "scss" } }, ....}or you can set this value via angular-cli like so:
ng config schematics.@schematics/angular:component.styleext scssAfter that try to generate component, it should have scss extension.
EDIT (replace styleExt with style):
As per this closed ticket https://github.com/ngrx/platform/issues/2248 with new version of Angular CLI styleExt has been replaced with style - I tested it in two libraries that are using Angular anf Angular CLI versions 8.