error TS1086: An accessor cannot be declared in an ambient context.

[drawcard]

ng serve --prod fails with:

ERROR in ../node_modules/ngx-useful-swiper/lib/swiper/swiper.component.d.ts:7:9 - error TS1086: An accessor cannot be declared in an ambient context.

7     set initialize(value: boolean);
          ~~~~~~~~~~

Running Angular 8.3.23

[tofra]

The problem is that set initialize(value: boolean); isn't supported by TS 3.5 which is used in angular 8. Updating to angular 9 will resolve it.
see: storybookjs/storybook#9463 (comment)

But it should of course work also in angular 8.

[exocom]

We downgraded from 9.0.3 to 9.0.0 and it resolved the issue for us.

[drawcard]

We are in a position where we can't upgrade to angular 9 - the workaround for us is to downgrade for now.