angular - “组件”不是 Angular 6 中的已知元素

Question

我在使用 angular 时遇到问题，这是我的项目结构(从 app 文件夹开始，请查看 super 管理员文件夹):

- Modules
---- home [+]
---- admin [+]
---- super-admin
-------- super-admin-routing.module.ts
-------- super-admin.module.ts
-------- (And html, scss, component file)
-------- pages
------------ auth [+]
------------ unauth [+]
------------ shared
---------------- shared.component.ts
---------------- (And html, scss file)
- cores [+]
- config [+]
- shared [+]
- strores [+]
- app-routing.module.ts
- app.module.ts

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
@NgModule({
  declarations: [
    AppComponent,

  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

app-routing.module.ts

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { HomeComponent } from './modules/home/home.component';
import { AdminComponent } from './modules/admin/admin.component';
import { SuperAdminComponent } from './modules/super-admin/super-admin.component';

const routes: Routes = [
    {
        path: "",
        component: HomeComponent
    },
    {
        path: "home",
        component: HomeComponent
    },
    {
        path: "admin",
        component: AdminComponent
    },
    {
        path: "super-admin",
        component: SuperAdminComponent,
        loadChildren: './modules/super-admin/super-admin.module#SuperAdminModule'
    },
    {
        path: "**",
        component: HomeComponent
    }
];

@NgModule({
    declarations: [
        HomeComponent,
        AdminComponent,
        SuperAdminComponent
    ],
    imports: [RouterModule.forRoot(routes)],
    exports: [RouterModule]
})
export class AppRoutingModule { }

super 管理员.module.ts

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

import { SuperAdminRoutingModule } from './super-admin-routing.module';
import { SharedComponent } from './pages/shared/shared.component';

@NgModule({
  imports: [
    CommonModule,
    SuperAdminRoutingModule
  ],
  declarations: [SharedComponent]
})
export class SuperAdminModule { }

super-admin-routing.module.ts

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { LoginComponent } from './pages/login/login.component';
import { AuthComponent } from './pages/auth/auth.component';


const routes: Routes = [
    {
        path: "login",
        component: LoginComponent
    },
    {
        path: "",
        component: AuthComponent,
        loadChildren: "./pages/auth/auth.module#AuthModule"
    },
    {
        path: "home",
        component: AuthComponent,
        loadChildren: "./pages/auth/auth.module#AuthModule"
    },
    {
        path: "**",
        component: AuthComponent
    },
    
];

@NgModule({
    declarations: [
        LoginComponent,
        AuthComponent
    ],
    imports: [RouterModule.forChild(routes)],
    exports: [RouterModule]
})
export class SuperAdminRoutingModule { }

super 管理员.component.html

<router-outlet></router-outlet>
<app-shared></app-shared>

最后是 shared.component.ts 文件

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-shared',
  templateUrl: './shared.component.html',
  styleUrls: ['./shared.component.scss']
})
export class SharedComponent implements OnInit {

  constructor() { }

  ngOnInit() {
  }

}

请看 super-admin.module.ts文件，我在 super-admin.module.ts 中导入并声明了 ShareComponent但我不能在 super-admin.component.html 中使用它，它说:

'app-shared' is not a known element:

1. If 'app-shared' is an Angular component, then verify that it is part of this module.
2. If 'app-shared' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.

我想我错过了什么吗？
我 ng s用了 7 次还是不行

Answer 1

由于您的 super-admin.component 属于 app.module.ts，您需要导出 SharedComponent 从 SuperAdminModule 并导入 SuperAdminModule 在你的 app.module.ts

将 super-admin.module 更改为，

@NgModule({
  imports: [
    CommonModule,
    SuperAdminRoutingModule
  ],
  declarations: [SharedComponent],
  exports : [SharedComponent]
})

EDIT 如评论中所述，将其添加到 app.routing.module.ts

@NgModule({
    declarations: [
        HomeComponent,
        AdminComponent,
        SuperAdminComponent
    ],
    imports: [RouterModule.forRoot(routes), SuperAdminModule],
    exports: [RouterModule]
})
export class AppRoutingModule { }