Página de inicio ts código

import { PostsService } from "./../posts.service";
import { Component, OnInit } from "@angular/core";
import { Observable } from "rxjs";
import { Router } from "@angular/router";
import { ActivatedRoute, ParamMap } from "@angular/router";
import { switchMap } from "rxjs/operators";
import { AdMobFree, AdMobFreeBannerConfig } from '@ionic-native/admob-free';

@Component({
  selector: "app-home",
  templateUrl: "home.page.html",
  styleUrls: ["home.page.scss"]
})
export class HomePage implements OnInit {
  constructor(
    private postSrvc: PostsService,
    private router: Router,
    private route: ActivatedRoute,
    private admobFree: AdMobFree
  ) {
    this.showBannerAd();
  }

  posts$: Observable<any>;
  loadPost(post: any) {
    this.router.navigate(["/posts", post.id]);
  }
  ngOnInit() {
    this.posts$ = this.route.paramMap.pipe(
      switchMap(
        (params: ParamMap) =>
          params.get("category")
            ? this.postSrvc.fetchPostsByCategory(params.get("category"))
            : this.postSrvc.fetchPosts()
      )
    );
  }


  async showBannerAd() {
    try {
      const bannerConfig: AdMobFreeBannerConfig = {
        id: 'unit id',
        isTesting: true,
        autoShow: true
      }

      this.adMobFree.banner.config(bannerConfig);

      const result = await this.adMobFree.banner.prepare();
      console.log(result);
    }
    catch (e) {
      console.error(e);
    }
  }

}

módulo app ts código

import { HttpClientModule } from "@angular/common/http";
import { NgModule } from "@angular/core";
import { BrowserModule } from "@angular/platform-browser";
import { RouteReuseStrategy } from "@angular/router";
import { SplashScreen } from "@ionic-native/splash-screen/ngx";
import { StatusBar } from "@ionic-native/status-bar/ngx";
import { IonicModule, IonicRouteStrategy } from "@ionic/angular";
import { AppRoutingModule } from "./app-routing.module";
import { AppComponent } from "./app.component";

import { AdMobFree } from '@ionic-native/admob-free';

@NgModule({
  declarations: [AppComponent],
  entryComponents: [],
  imports: [
    BrowserModule,
    IonicModule.forRoot(),
    AppRoutingModule,
    HttpClientModule
  ],
  providers: [
    StatusBar,
    SplashScreen,
    AdMobFree,
    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
  ],
  bootstrap: [AppComponent]
})
export class AppModule {}

todos los Errores

[ng] ERROR en src/app/app.el módulo.ts(13,11): error TS2345: Argumento de tipo '{ declaraciones: (typeof AppComponent)[]; entryComponents: undefined[]; importación: (ModuleWithProvid...' no asignables a los parámetros de tipo 'NgModule'.

[ng] Tipos de propiedad "proveedores" son incompatibles.

[ng] Tipo '(typeof SplashScreen | AdMobFreeOriginal | { proporcionar: typeof RouteReuseStrategy; useClass: typeof...' no es asignable a tipo de Profesional' []'.

[ng] Tipo 'typeof SplashScreen | AdMobFreeOriginal | { proporcionar: typeof RouteReuseStrategy; useClass: typeof ...' no es asignable tipo de 'Proveedor'.

[ng] Tipo 'AdMobFreeOriginal' no es asignable tipo de 'Proveedor'.

[ng] Tipo 'AdMobFreeOriginal' no es asignable al tipo 'ClassProvider'.

[ng] Propiedad 'proporcionar' falta en el tipo 'AdMobFreeOriginal'.

[ng] src/app/home/home.página.ts(19,24): error TS2304: No se puede encontrar el nombre de 'AdMobFree'.

[ng] src/app/home/home.página.ts(48,12): error TS2551: la Propiedad 'adMobFree' no existe en el tipo 'página de inicio'. Did you mean 'admobFree'?

[ng] src/app/home/home.página.ts(50,33): error TS2551: la Propiedad 'adMobFree' no existe en el tipo 'página de inicio'. Did you mean 'admobFree'?