Access to the ViewChild component is currently not defined

I am encountering an issue where my component is being received as undefined. I have defined it as a @ViewChild with an export class. Any assistance would be greatly appreciated. Although, when I attempt to view the definition, it correctly points to the class

SelectNccnInternalReviewersComponent
, however during debugging I am faced with the error of undefined

The export class that I am calling

    import { SelectNccnInternalReviewersComponent } from "../../Components/Review/SelectNccnInternalReviewersComponent";
        
export class UpdateReviewersPopup implements AfterViewInit {

    @ViewChild(SelectNccnInternalReviewersComponent) selectNccnInternalReviewersComponent: SelectNccnInternalReviewersComponent;

    @Output() reviewersAdded: EventEmitter<void> = new EventEmitter<void>();

    constructor( @Inject(ReviewService) private reviewService: ReviewService) {

    }

this.selectReportYearsComponent.initPotentialReportYears(undefined, undefined);

The Component Class with the export class

@Component({
    selector: ".select-nccn-internal-reviewers",
    templateUrl: "/Views/Components/Review/SelectNccnInternalReviewersComponent.html"
})
export class SelectNccnInternalReviewersComponent extends SelectableGrid<PotentialMdReviewerDto, string> 

Undefined

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