在模块中添加AngularFirestoreModule和AngularFirestoreCollection的引用。

示例：

1. 首先在app.module.ts中导入AngularFirestoreModule和AngularFirestoreCollection：

import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { AppComponent } from './app.component'; import { AngularFirestoreModule } from '@angular/fire/firestore'; import { AngularFirestoreCollection } from '@angular/fire/firestore';

@NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, AngularFirestoreModule ], providers: [ AngularFirestoreCollection ], bootstrap: [AppComponent] }) export class AppModule { }

2. 在需要使用AngularFirestoreCollection的组件中，进行注入操作：

import { Component } from '@angular/core'; import { AngularFirestoreCollection } from '@angular/fire/firestore'; import { Observable } from 'rxjs'; import { Item } from './item.model'; import { AngularFirestore } from '@angular/fire/firestore';

@Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { itemsCollection: AngularFirestoreCollection; items: Observable; title = 'My App';

constructor(private afs: AngularFirestore) { this.itemsCollection = this.afs.collection('items'); this.items = this.itemsCollection.valueChanges(); } }

通过以上示例，你就可以在Angular 13环境下成功使用AngularFirestoreCollection了。