Erro - ng build --prod: Unexpected imported by the module Please add a @NgModule annotation

import { BrowserModule } from ''@angular/platform-browser'';
import { NgModule } from ''@angular/core'';
import { HttpClientModule, HTTP_INTERCEPTORS } from ''@angular/common/http'' 
import { AppRoutingModule } from ''./app-routing.module'';
import { AppComponent } from ''./app.component'';
import { PrincipalComponent } from ''./ExameInformacoes/principal/principal.component'';
import { ConteudoComponent } from ''./ExameInformacoes/conteudo/conteudo.component'';

import { Ng2SearchPipeModule } from ''ng2-search-filter'';
import { FormsModule }   from ''@angular/forms'';
import { NgHighlightModule } from ''ngx-text-highlight'';
//import { OrderPipe, } from ''src/app/order.pipe''; //''ngx-order-pipe'';
//import {OrderModule,OrderPipe} from ''ngx-order-pipe'';

import { OrderPipe } from ''./order.pipe''; //''src/app/order.pipe''; //''ngx-order-pipe'';
import  from ''ngx-order-pipe'';

import { LoadingSpinnerComponent } from ''./ui/loading-spinner/loading-spinner.component'';
import { TreeViewModule } from ''@syncfusion/ej2-angular-navigations'';
import { PesquisaComponent } from ''./ExameInformacoes/pesquisa/pesquisa.component'';
import { HttpErrorInterceptor } from ''./http-error.interceptor'';
import { PesquisarDirective } from ''./directives/pesquisar.directive'';

@NgModule({
  declarations: [
    AppComponent,
    PrincipalComponent,
    ConteudoComponent,
    LoadingSpinnerComponent,
    PesquisaComponent,
    PesquisarDirective,
    [OrderModule],
    [OrderPipe]
  ],
  imports: [
    Ng2SearchPipeModule,
    BrowserModule,
    AppRoutingModule,
    HttpClientModule,
    FormsModule,
    NgHighlightModule,
    TreeViewModule
    //OrderModule,
    //OrderPipe
  ],
  exports:[ 
    [OrderModule],
    [OrderPipe]
  ],
  providers: [
    {
      provide: HTTP_INTERCEPTORS,
      useClass: HttpErrorInterceptor,
      multi: true
    }
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }