Angular – 跨多个模块使用组件

我在用什么

>角度

我想做什么

>我有一个我想在多个模块中重用的加载组件

我做了什么

>我创建了一个名为’loading-overlay’的新模块
>在此模块中,我导出叠加组件
>我将此模块添加到app.module
>将组件添加到多个模块时,我收到以下错误：

Type LoadingOverlayComponent is part of the declarations of 2 modules: LoadingOverlayModule and ProjectsModule! Please consider moving LoadingOverlayComponent to a higher module that imports LoadingOverlayModule and ProjectsModule. You can also create a new NgModule that exports and includes LoadingOverlayComponent then import that NgModule in LoadingOverlayModule and ProjectsModule.

>我已经尝试将其从app.module中删除并将其导入我需要的其他模块而没有太多运气.我必须遗漏一些明显的东西.

叠加模块

// Modules
import { NgModule } from '@angular/core';

// Components
import { LoadingOverlayComponent } from './loading-overlay.component';



@NgModule({
  declarations: [
    LoadingOverlayComponent,],imports: [

  ],exports: [
    LoadingOverlayComponent
  ],providers: [ ],})

export class LoadingOverlayModule { }

应用模块

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

import { AppComponent } from './app.component';

// Routing
import { AppRouting } from './routing/app-routing';

// Modules
import { ProjectsModule } from './projects/projects.module';
import { UserModule } from './user/user.module';
import { LoadingOverlayModule } from './loading-overlay/loading-overlay.module';


// Services / Providers
import { AuthService } from './user/auth.service'





@NgModule({
  declarations: [
    AppComponent,imports: [
    browserModule,AppRouting,LoadingOverlayModule  
  ],providers: [
    AuthService,bootstrap: [AppComponent]
})
export class AppModule { }

项目模块

// Modules
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { RouterModule } from '@angular/router';
import { LoadingOverlayModule } from '../loading-overlay/loading-overlay.module';

import { LoadingOverlayComponent } from '../loading-overlay/loading-overlay.component';






@NgModule({
  declarations: [

    LoadingOverlayComponent
  ],imports: [
    CommonModule,RouterModule,LoadingOverlayModule
  ],})

export class ProjectsModule { }

任何帮助指出我愚蠢错过的将非常感谢:)

解决方法

去掉 ：

来自AppModule的LoadingOverlayModule

来自ProjectsModule的LoadingOverlayComponent

而且：

import LoadingOverlayModule其所需的位置