NGRX: TypeError: Actions must have a type property

If this helps someone else starting...Turns out I was not returning the Action that ngrx is expecting in the map operator.

because effect must return an action at the end. so you have two choices:

1. return a {type: string} object

2. return a new Action()

   import * as MyActions from "./myactions.actions";
   
   @Injectable()
   export class MyEffects {
       @Effect()
       testEffect = this.actions$
           .ofType(MyActions.TEST_ACTION)
           .map((action: MyActions.TryTest) => {
               return {type:'your_action'}
           });
   
       constructor(private actions$: Actions) {}
   }