要解决Angularfire Appcheck未正确初始化的问题，需要按照以下步骤进行操作：

1. 添加App Check模块作为AngularFire依赖项，如下所示：

import { AngularFireModule } from '@angular/fire';
import { AngularFireAuthModule } from '@angular/fire/auth';
import { AngularFireDatabaseModule } from '@angular/fire/database';
import { AngularFireFunctionsModule } from '@angular/fire/functions';
import { AngularFireMessagingModule } from '@angular/fire/messaging';
import { AngularFireStorageModule } from '@angular/fire/storage';
import { AngularFirestoreModule } from '@angular/fire/firestore';
import { AngularFireAppCheckModule } from '@angular/fire/app-check';

@NgModule({
  imports: [
    AngularFireModule.initializeApp(environment.firebase),
    AngularFireAuthModule,
    AngularFireDatabaseModule,
    AngularFireFunctionsModule,
    AngularFireMessagingModule,
    AngularFireStorageModule,
    AngularFirestoreModule,
    AngularFireAppCheckModule,
  ],
  // ...
})
export class AppModule { }

2. 在Firebase控制台中启用App Check以获取在应用程序中使用的reCAPTCHA密钥。

3. 在Angular中配置App Check，如下所示：

import { AngularFireAppCheckModule, USE_EMULATOR } from '@angular/fire/app-check';

@NgModule({
  imports: [
    AngularFireModule.initializeApp(environment.firebaseConfig),
    AngularFireAppCheckModule,
  ],
  providers: [
    { provide: USE_EMULATOR, useValue: ['localhost', 5003] }, // Optional configuration for using App Check emulator on localhost.
    {
      provide: FUNCTIONS_REGION,
      useValue: 'us-central1',
    },
  ],
})
class AppModule {}

4. 确保在调用任何Firebase服务之前正确初始化App Check：

import { AngularFireAppCheck } from '@angular/fire/app-check';

@Component({
  // ...
})
export class MyComponent {
  constructor(private appCheck: AngularFireAppCheck) {}

  ngOnInit() {
    this.appCheck.activate(environment.reCAPTCHASiteKey);
  }
}