README.md

Angular compile message(s):

Error: src/app/app.component.html:74:2 - error NG8001: 'app-page' is not a known element:
1. If 'app-page' is an Angular component, then verify that it is part of this module.
2. If 'app-page' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.

74  <app-page></app-page>
    ~~~~~~~~~~

  src/app/app.component.ts:7:15
    7  templateUrl: './app.component.html',
                    ~~~~~~~~~~~~~~~~~~~~~~
    Error occurs in the template of component AppComponent.

app.component.html

<main>
	<app-page></app-page>
</main>

app.component.ts

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

@Component({
	selector: 'app-root',
	templateUrl: './app.component.html',
	providers: [NgbModalConfig, NgbModal]
})
export class AppComponent {
	title = 'test';
	closeResult = '';
}

app.module.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppRoutingModule } from './app-routing.module';
import { PageModule } from './page/page.module';
import { AppComponent } from './app.component';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { RouterModule } from '@angular/router';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule.withServerTransition({ appId: 'serverApp' }),
	PageModule,
    NgbModule,
    AppRoutingModule,
    RouterModule,
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

page.component.html

<p>page works!</p>

page.component.ts

// src/app/page/page.component.ts
import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-page',
  templateUrl: './page.component.html',
})
export class PageComponent implements OnInit {

  constructor() { }

  ngOnInit(): void {
  }

}

page.module.ts

// src/app/page/page.component.ts
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';

import { PageComponent } from './page.component';

@NgModule({
  declarations: [
    PageComponent
  ],
  imports: [
    CommonModule,
  ]
})
export class PageModule { }