ERROR RuntimeError: NG0100: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: ‘-1’. Current value: ‘0’. Expression location: _AppComponent component.
ERROR RuntimeError: NG0100: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: ‘-1’. Current value: ‘0’. Expression location: _AppComponent component.