I've upgraded to Angular 19 and when I build the project I am getting a few new warnings. One of which is related to dayjs: ▲ [WARNING] Module 'dayjs' used by 'projects/portal/src/app/applets/events/events.component.ts' is not ESM CommonJS or AMD dependencies can cause optimization bailouts. For more information see: https://angular.dev/tools/cli/build#configuring-commonjs-dependencies ▲ [WARNING] Module 'dayjs/plugin/utc' used by 'projects/portal/src/app/applets/events/events.component.ts' is not ESM CommonJS or AMD dependencies can cause optimization bailouts. For more information see: https://angular.dev/tools/cli/build#configuring-commonjs-dependencies Here's my code that's importing dayjs in the file: import dayjs from 'dayjs'; import utc from 'dayjs/plugin/utc'; dayjs.extend(utc); My dayjs version in the package.json is "^1.11.10" I should mention that the project builds and works fine. But I would like to still deal with the warning. Continue reading...