角度7 NGB手风琴菜单未渲染

<div class="container-fluid">
  <div class="col-sm-12">
    <h1 class="text-center">
      Discounts
    </h1>
    <div class="row">
      <ngb-accordion #acc="ngbAccordion">
        <ngb-panel id="toggle-1" title="First panel">
          <ng-template ngbPanelContent>
            Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia
            aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor,
            sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica,
            craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings
            occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus
            labore sustainable VHS.
          </ng-template>
        </ngb-panel>
        <ngb-panel id="toggle-2" title="Second">
          <ng-template ngbPanelContent>
            Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia
            aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor,
            sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica,
            craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings
            occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus
            labore sustainable VHS.
          </ng-template>
        </ngb-panel>
      </ngb-accordion>
    </div>
      .
      .
      .

我们有角度7,天然气引导4+和从我可以告诉一切应该工作。我们现在不知所措。这是我的应用程序模块:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { HttpClientModule } from '@angular/common/http';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { NavMenuTopComponent } from './views/common/nav-menu-top/nav-menu-top.component';
import { LoginComponent } from './views/common/login.component';
import { Ng2SmartTableModule } from 'ng2-smart-table';
import { AdministrationAnnouncementsComponent } from './views/administration/announcements/administrationAnnouncements.component';
import { AdministrationAppointmentsComponent } from './views/administration/appointments/administrationAppointments.component';
//import { AdministrationAppointmentsComponent } from './views/administration/appointments/administrationAppointments_2.component';
import { AdministrationArchivesComponent } from './views/administration/archives/administrationArchives.component';
import { AdministrationCallsComponent } from './views/administration/calls/administrationCalls.component';
import { AdministrationCompaniesComponent } from './views/administration/companies/administrationCompanies.component';
import { AdministrationCustomersComponent } from './views/administration/customers/administrationCustomers.component';
import { AdministrationEmployeesComponent } from './views/administration/employees/administrationEmployees.component';
import { AdministrationInvoicesComponent } from './views/administration/invoices/administrationInvoices.component';
import { AdministrationObservationsComponent } from './views/administration/observations/administrationObservations.component';
import { AdministrationProblemsComponent } from './views/administration/problems/administrationProblems.component';
import { AdministrationQuickInvoicesComponent } from './views/administration/quickInvoices/administrationQuickInvoices.component';
//import { TechnicianAppointmentsComponent } from './views/technician/appointments/technicianAppointments.component';
//import { TechnicianDiscountsComponent } from './views/technician/discounts/technicianDiscounts.component';
//import { TechnicianHomeComponent } from './views/technician/home/technicianHome.component';
//import { TechnicianInvoicesComponent } from './views/technician/invoices/technicianInvoices.component';
//import { TechnicianOptionsComponent } from './views/technician/options/technicianOptions.component';
//import { TechnicianProblemsComponent } from './views/technician/problems/technicianProblems.component';
//import { TechnicianReviewsComponent } from './views/technician/reviews/technicianReviews.component';
//import { TechnicianSolutionsComponent } from './views/technician/solutions/technicianSolutions.component';
import { jqxGridComponent } from 'jqwidgets-scripts/jqwidgets-ts/angular_jqxgrid';
import { JwtModule } from '@auth0/angular-jwt';
import { AdminAuthGuard } from './guards/admin-auth-guard.service';
import { TechAuthGuard } from './guards/tech-auth-guard.service';
import { companyList } from './views/administration/partials/companyList/companyList.component';
import { employeeForm } from './views/administration/partials/employeeForm/employeeForm.component';
import { ButtonRenderComponent } from './views/administration/partials/button-render/button.render.component';
import { employeeSelectForm } from './views/administration/partials/employeeSelectForm/employeeSelectForm.component';
import { customerForm } from './views/administration/partials/customerForm/customerForm.component';
import { cityStateZipSelector } from './views/administration/partials/cityStateZipSelector/cityStateZip.component';
import { customerCreateModal } from './views/administration/partials/customerCreationModal/customerCreationModal.component';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { createCustomerForm } from './views/administration/partials/createCustomerForm/createCustomerForm.component';
import { customerUpdateForm } from './views/administration/partials/customerUpdateForm/customerUpdateForm.component';
import { employeeCreateForm } from './views/administration/partials/employeeCreateForm/employeeCreateForm.component';
import { CounterComponent } from './views/common/counter/counter.component';
import { jqxSchedulerComponent } from 'jqwidgets-scripts/jqwidgets-ts/angular_jqxscheduler';
import { TaskManagementComponent } from './views/administration/taskManagement/taskManagement.component';
import { TaskManagementHomeComponent } from './views/administration/taskManagement/taskManagementHome/taskManagementHome.component';
import { ToastrModule } from 'ngx-toastr';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { TaskManagementCategoriesComponent } from './views/administration/taskManagement/taskManagementCategories/taskManagementCategories.component';
import { DemoTechComponent } from './views/technician/demoHome/demoHome.component';
import { AppointmentMaintenance } from './views/technician/appointmentMaintenance/appointmentMaintenance.component';
import { getCompanySalesTax } from './views/administration/partials/getCompanySalesTax/getCompanySalesTax.component';
import { getEmployeeList } from './views/administration/partials/employeeList/employeeList.component';
import { getObservationsList } from './views/administration/partials/ObservationsList/observationsList.component';
import { getCategorySubcategoryList } from './views/administration/partials/CategorySubcategoryList/categorySubcategory.component';
import { ObservationsComponent } from './views/technician/observations/observations.component';
import { FindingsComponent } from './views/technician/findings/findings.component';
import { TechOptionsComponent } from './views/technician/tech-options/tech-options.component';
import { CustomerReviewComponent } from './views/technician/customer-review/customer-review.component';
import { DiscountsComponent } from './views/technician/discounts/discounts.component';
import { MaterialNotesComponent } from './views/technician/material-notes/material-notes.component';
import { TechHomeComponent } from './views/technician/techHome/techHome.component';
import { SalesTaxFormComponent } from './views/administration/partials/salesTaxForm/salesTaxForm.component';
import { environment } from '../environments/environment';
import { AnnouncementsDisplayComponent } from './views/technician/partials/announcements/announcements.component';
import { optionCopyMenuComponent } from './views/technician/partials/optionCopy/optionCopyMenu.component';
import { TechLayoutComponent } from './views/common/techLayout/techLayout.component';
import { AdminLayoutComponent } from './views/common/adminLayout/adminLayout.component';
import { AppointmentDetails } from './views/technician/appointmentDetails/appointmentDetails.component';
import { techHeaderComponent } from './views/technician/partials/techHeader/techHeader.component';
import { DiscountFormComponent } from './views/administration/partials/companyDiscountsForm/discountsForm.component';
import { ServiceChargeFormComponent } from './views/administration/partials/companyServiceChargeForm/serviceChargeForm.component';
import { ObservationListComponent } from './views/technician/partials/observationList/observationList.component';
import { FontAwesomeModule } from '@fortawesome/angular-fontawesome';

export function jwtTokenGetter() {
  return sessionStorage.getItem("fleetbooks_JWT");
};

@NgModule({
  declarations: [
    AppComponent,
    NavMenuTopComponent,
    LoginComponent,
    AdministrationAnnouncementsComponent,
    AppointmentDetails,
    AdministrationAppointmentsComponent,
    AdministrationArchivesComponent,
    AdministrationCallsComponent,
    AdministrationCompaniesComponent,
    AdministrationCustomersComponent,
    AdministrationEmployeesComponent,
    AdministrationInvoicesComponent,
    AdministrationObservationsComponent,
    AdministrationProblemsComponent,
    AdministrationQuickInvoicesComponent,
    //TechnicianAppointmentsComponent,
    //TechnicianDiscountsComponent,
    //TechnicianHomeComponent,
    //TechnicianInvoicesComponent,
    //TechnicianOptionsComponent,
    //TechnicianProblemsComponent,
    //TechnicianReviewsComponent,
    //TechnicianSolutionsComponent,
    jqxGridComponent,
    jqxSchedulerComponent,
    companyList,
    employeeForm,
    employeeSelectForm,
    employeeCreateForm,
    customerForm,
    cityStateZipSelector,
    createCustomerForm,
    customerUpdateForm,
    customerCreateModal,
    CounterComponent,
    TaskManagementComponent,
    TaskManagementHomeComponent,
    TaskManagementCategoriesComponent,
    DemoTechComponent,
    AppointmentMaintenance,
    getEmployeeList,
    getCompanySalesTax,
    getObservationsList,
    getCategorySubcategoryList,
    ButtonRenderComponent,
    ObservationsComponent,
    FindingsComponent,
    TechOptionsComponent,
    CustomerReviewComponent,
    DiscountsComponent,
    MaterialNotesComponent,
    TechHomeComponent,
    SalesTaxFormComponent,
    AnnouncementsDisplayComponent,
    TechLayoutComponent,
    AdminLayoutComponent,
    optionCopyMenuComponent,
    techHeaderComponent,
    DiscountFormComponent,
    ServiceChargeFormComponent,
    ObservationListComponent,
  ],
  entryComponents: [ButtonRenderComponent],
  imports: [
    Ng2SmartTableModule,
    BrowserModule,
    HttpClientModule,
    JwtModule.forRoot({
      config: {
        tokenGetter: jwtTokenGetter,
        whitelistedDomains: [environment.baseUrl],
        blacklistedRoutes: [],
      }
    }),
    NgbModule,
    FormsModule,
    ReactiveFormsModule,
    AppRoutingModule,
    BrowserAnimationsModule,
    ToastrModule.forRoot({
      timeOut: 3000,
      positionClass: 'toast-top-right',
    }),
    FontAwesomeModule
  ],
  providers: [AdminAuthGuard, TechAuthGuard],
  bootstrap: [AppComponent]
})
export class AppModule { }

我知道时间很长,如果需要的话,我可以把所有无用的东西都拿出来。如果需要,我还可以发布package.json。如果我检查元素,我上面链接的代码将呈现如下:

<ngb-accordion activeids="ngb-panel-0" class="accordion" role="tablist" ng-reflect-active-ids="ngb-panel-0"><!----></ngb-accordion>

这是我参考的教程: https://ng-bootstrap.github.io/#/components/accordion/api