title: Cannot declaremodule in an NgModule as it's not a part of the current compilation Angular
body: <p>Im not sure what is happening here but i am receiving this error 'Cannot declare 'FormsModule' in an NgModule as it's not a part of the current compilation' when importing 'formsModule' and 'reactiveformsmodule'into my app.module component. </p>
  
  <p>I am running angular 9 and have tried clearing the cache, reinstalling npm. Could these be an angular 9 issue ? would downgrading to 8 fix the problem...</p>
  
  <p>I am confused as to what is going on here as it imported fine the day previous.</p>
  
  <p>app.module.ts</p>
  
  <pre><code>    import { BrowserModule } from '@angular/platform-browser';
  import { NgModule } from '@angular/core';
  import { AppComponent } from './app.component';
  import { HttpClientModule } from '@angular/common/http';
  import { ExpertAdviceLandingPageComponent } from './expert-advice-landing-page/expert-advice-landing-page.component';
  import { InstagramComponent } from './instagram/instagram.component';
  import { MDBBootstrapModule } from 'angular-bootstrap-md';
  import { SharedModule } from './shared/shared.module';
  import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
  import { BuyingGuideComponent } from './buying-guide/buying-guide.component';
  import { IdeasAndInspirationComponent } from './ideas-and-inspiration/ideas-and-inspiration.component';
  import { AdviceAndGuidanceComponent } from './advice-and-guidance/advice-and-guidance.component';
  import { GuidesComponent } from './guides/guides.component';
  import { CommonModule } from '@angular/common';
  import { CarouselComponent } from './carousel/carousel.component';
  import { CarouselModule } from 'angular-bootstrap-md';
  import { AppRoutingModule } from './app-routing.module';
  import { SharedService } from './shared/sharedService';
  import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
  import { FormsModule, ReactiveFormsModule } from '@angular/forms';
  
  @NgModule({
    declarations: [
      AppComponent,
      BuyingGuideComponent,
      IdeasAndInspirationComponent,
      AdviceAndGuidanceComponent,
      GuidesComponent,
      ExpertAdviceLandingPageComponent,
      InstagramComponent,
      CarouselComponent,
      FormsModule,
      ReactiveFormsModule
    ],
    imports: [
      BrowserModule,
      SharedModule,
      HttpClientModule,
      CommonModule,
      CarouselModule,
      MDBBootstrapModule.forRoot(),
      BrowserAnimationsModule,
      AppRoutingModule,
      NgbModule,
      FormsModule,
      ReactiveFormsModule
  
    ],
    providers: [SharedService],
    bootstrap: [AppComponent]
  })
  export class AppModule {
  }
  </code></pre>