pipe/@Directive/@Component%20annotation.Error: Unexpected value 'AuthenticationService' declared by the module 'DynamicTestModule'. Please add a Pipe/@Directive/@Component annotation. code example

Example 1: Unexpected value 'BrowserAnimationsModule' declared by the module 'AppModule'.

Unexpected value 'BrowserAnimationsModule' declared by the module

Example 2: Please add a @Pipe/@Directive/@Component annotation.

import { SharedModule } from './modules/shared/shared.module';

@NgModule({
  declarations: [
     // Should not have been added here...
  ],
  imports: [
     SharedModule
  ],