Angular 无法通过当前组件路由组件

我对angular和routing不太熟悉，在从body.component调用question.component并想用question.component替换它的情况下遇到了问题，但出现了错误。下面是我的代码

app-routing.module.ts

app.component.html

---

您已将ask路径的出口设置为辅助出口，因此可能未添加辅助出口

 <router-outlet name="secondary"></router-outlet> 

像这样使用这个链接

<mat-card class="card-container">
<button mat-raised-button color="success" [routerLink]="[{ outlets: { secondary: ['ask'] } }]" skipLocationChange> <mat-icon>speaker_notes</mat-icon> Ask Question</button>
</mat-card>

查看此帖子

---

您已将ask路径的出口设置为辅助出口，因此可能未添加辅助出口

 <router-outlet name="secondary"></router-outlet> 

像这样使用这个链接

<mat-card class="card-container">
<button mat-raised-button color="success" [routerLink]="[{ outlets: { secondary: ['ask'] } }]" skipLocationChange> <mat-icon>speaker_notes</mat-icon> Ask Question</button>
</mat-card>

查看此帖子

---

仍然不工作的可能副本仍然不工作的可能副本

core.js:9110 ERROR Error: Uncaught (in promise): Error: Cannot match any routes. URL Segment: 'home/ask'
Error: Cannot match any routes. URL Segment: 'home/ask'
    at ApplyRedirects.noMatchError (router.js:3387)
    at CatchSubscriber.selector (router.js:3351)

 <router-outlet name="secondary"></router-outlet> 

<mat-card class="card-container">
<button mat-raised-button color="success" [routerLink]="[{ outlets: { secondary: ['ask'] } }]" skipLocationChange> <mat-icon>speaker_notes</mat-icon> Ask Question</button>
</mat-card>