[karma-server]: Server start failed on port 9876: Error: The target entry-point "ngx-siema" has missing dependencies: - rxjs/BehaviorSubject - rxjs/ReplaySubject - rxjs/add/operator/publish - rxjs/Observable

after implementing ngx seima in project , karma is not working.
steps to reproduce the error
1. create new angular app.
2. install ngx-seima package in the app
3. run the application, it will produce above error.
or
4. implement ngx-seima carousel in any component
5. Run the ng test, error occur as above

@devoto13

Reproduce the issue by creating an Angular app, installing ngx-seima, and running ng test. Start from Karma's server-start failure and the reported missing rxjs dependencies for the ngx-siema entry point. Done means the test server starts successfully and the missing-dependency error no longer appears.

Written by the indexing model from the issue text.