Html 为什么模块的导入导出错误为；BlogpostModule'；声明，但从未读取其值。ts（6133）"；角度7

我已经在模块中创建了组件，并尝试使用“app.component.html”中的简单html代码输出结果

当我将鼠标悬停在代码上时，它会显示此错误“BlogpostModule”已声明，但其值从未读取。ts（6133）

当我删除代码“”时。我看到了输出

请帮我修一下这空白页

app.component.html

<div class="container">
<app-header></app-header>
<app-banner></app-banner>
<app-blogpost-featured></app-blogpost-featured>
<app-footer></app-footer>
</div>
<router-outlet></router-outlet>

blogpost.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppRoutingModule } from './app-routing.module';
import { BlogpostModule } from './blogpost/blogpost.module';
import { CmspageModule } from './cmspage/cmspage.module';
import { AppComponent } from './app.component';
import { HeaderComponent } from './header/header.component';
import { FooterComponent } from './footer/footer.component';
import { BannerComponent } from './banner/banner.component';
import { PageNotFoundComponent } from './page-not-found/page-not-found.component';


@NgModule({
  declarations: [
    AppComponent,
    HeaderComponent,
    FooterComponent,
    BannerComponent,
    PageNotFoundComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    CmspageModule,
    AppRoutingModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

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

import { BlogpostRoutingModule } from './blogpost-routing.module';
import { BlogpostFeaturedComponent } from './blogpost-featured/blogpost-featured.component';
import { BlogpostListComponent } from './blogpost-list/blogpost-list.component';
import { BlogpostDetailComponent } from './blogpost-detail/blogpost-detail.component';
import { BlogpostRecentComponent } from './blogpost-recent/blogpost-recent.component';
import { CategoriesComponent } from './categories/categories.component';


@NgModule({
   imports: [
    CommonModule,
    BlogpostRoutingModule
  ],
  exports: [
    BlogpostFeaturedComponent
  ],
  declarations: [BlogpostFeaturedComponent, BlogpostListComponent, BlogpostDetailComponent, BlogpostRecentComponent, CategoriesComponent],
  })
export class BlogpostModule { }

---

您忘记在

app.module.ts

中包含

BlogpostModule

谢谢Pankaj。我是个新手。正在尝试创建一个博客网站！谢谢。您可以分享您的电子邮件id以便进一步查询吗？再次感谢