NgRx Effects中concatLatestFrom使用报错求助

连续两天在使用 NgRx Effects 配合 Store 时遇到报错，已经试过更换 map、concatMap 等操作符，也修改过选择器，但问题依然存在，恳请帮忙排查。

错误截图 #

模拟环境 #

已在 StackBlitz 上搭建了模拟环境，涉及的核心文件包括：

• src/meetings/+state/actions.ts
• src/meetings/meetings.component.html
• src/meetings/+state/selectors.ts
• src/meetings/meetings.module.ts
• src/app.module.ts
• src/app.component.html
• src/meetings/+state/reducers.ts
• src/meetings/meetings.component.ts
• src/meetings/+state/models.ts
• src/meeting/meeting.component.ts
• src/meetings/+state/effects.ts

相关代码片段 #

Action 定义 #

export const LoadMeetings = createAction('[ Meetings/Api ] Load Meetings');

Effect 代码 #

readonly loadMeetings$ = createEffect(() =>
    this.actions$.pipe(
        ofType(fromMeetingsActions.LoadMeetings),
        concatLatestFrom(action => this.store.select(fromMeetings.selectMeetingsState)),
    )
);

Selector 代码 #

export const selectMeetingsState =
    createFeatureSelector<MeetingsStateModel>(meetingsFeatureKey);
// 这种写法也不行
const selector = <T>(mapping: (state: MeetingsStateModel) => T) => createSelector(selectMeetingsState, mapping);
export const selectSelectedMeetingId = selector((state) => state.selectedMeetingId);

内容的提问来源于stack exchange，提问作者John House