An issue has been encountered at the header component of an Angular web application, identified as error code

I recently created a small Angular web application and decided to create a Header component using the command line ng g c Header. https://i.sstatic.net/ZgCi0.pngI then proceeded to write a brief paragraph in the header.component.html file.

<p>header works!</p>

https://i.sstatic.net/3UYRR.png An example of the code within **header.component.ts** is shown below:

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

@Component({
  selector: 'app-header',
  standalone: true,
  imports: [],
  templateUrl: './header.component.html',
  styleUrl: './header.component.scss'
})
export class HeaderComponent {

}

https://i.sstatic.net/7U98w.png In the app.component.html file, I included:

<app-header></app-header>
And also added relevant code into app.component.ts:

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

@Component({
  selector: 'app-root',
  standalone: true,
  imports: [RouterOutlet],
  templateUrl: './app.component.html',
  styleUrl: './app.component.scss'
})
export class AppComponent {
  title = 'MyFirstProjectDeveloperAkademie1Test';
}

However, upon trying to run the application using ng serve, an error occurred.

https://i.sstatic.net/LN5AQ.png

If anyone can offer assistance with this issue, it would be greatly appreciated. Here is the specific error message encountered: https://i.sstatic.net/HW47E.png

Answer №1

HeaderComponent must be imported by the consumer (AppComponent) in order to utilize standalone components:

@Component({
  selector: 'app-root',
  standalone: true,
  imports: [RouterOutlet, HeaderComponent],
  templateUrl: './app.component.html',
  styleUrl: './app.component.scss'
})
export class AppComponent {
  title = 'MyFirstProjectDeveloperAkademie1Test';
}

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