这就是我所拥有的：

//PageHeaderModule

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { PageHeaderComponent } from './index';


@NgModule({
  imports: [CommonModule],declarations: [PageHeaderComponent]
})


export class PageHeaderModule { }

//Shared Module

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';

import { Routes,RouterModule } from '@angular/router';

import { HeaderComponent,SideBarComponent,BurgerMenuComponent,FooterComponent,InnerSpinnerComponent,PageHeaderComponent  } from "./components/index";
import { UniqueNameValidationByList } from "./directives/index";
import { LowerCasePipe,WhitespacePipe } from "./pipes/index";

@NgModule({
    imports: [CommonModule,RouterModule],declarations: [
        PageHeaderComponent,HeaderComponent,UniqueNameValidationByList,LowerCasePipe,WhitespacePipe
    ],exports: [
        PageHeaderComponent,})

export class SharedModule { }

//AppModule 

import { NgModule }      from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { Routes,RouterModule } from '@angular/router';
import { LocationStrategy,HashLocationStrategy } from '@angular/common';

import { routing,appRoutes }  from './app.routes';
import { AppComponent }   from './app.component';


import { BillingModule }  from './billing/billing.module';
import { CustomersModule }  from './customers/customers.module';
import { DashboardModule }  from './dashboard/dashboard.module';
import { DevicesModule }  from './devices/devices.module';
import { GroupsModule }  from './groups/groups.module';
import { ProductsModule }  from './products/products.module';
import { ReportingModule }  from './reporting/reporting.module';
import { LoginModule }  from './login/login.module';

import { SharedModule } from "./shared/shared.module";


import { SideBarService } from "./shared/components/index";
import { SignalRService,CountriesService } from "./shared/services/index";


@NgModule({
    imports: [BrowserModule,RouterModule.forRoot(appRoutes,{ useHash: true }),routing,SharedModule,BillingModule,CustomersModule,DashboardModule,DevicesModule,GroupsModule,ProductsModule,ReportingModule,LoginModule
    ],declarations: [AppComponent],providers: [{ provide: LocationStrategy,useClass: HashLocationStrategy },SideBarService,SignalRService,CountriesService],bootstrap: [AppComponent],}) 

export class AppModule { }

注意这里有两件事：

1)我没有使用页眉模块,因为我认为sharedModule应该关注所有这些共享组件,而是逐个创建,但我不确定.

2)我只是在共享模块中使用’exports’,而不是在我的应用程序中的任何其他模块中使用

我得到的错误就是这个：

我一直在尝试很多东西,但似乎没有什么能解决我的问题,我真的很感激你能提供的任何帮助.

如果需要更多信息,请告诉我.

谢谢