What could be causing my Angular project to not run properly without any changes made after creating a new component that I want to include in app.component.html?

Greetings, I am just starting out with Angular 17 and I am currently going through the Tour of Heroes course on the official website. Following the tutorial's instructions, I created a new component called 'heroes' after setting up my project. I then added the component selector 

<app-heroes></app-heroes>
to app.component.html

However, when attempting to serve the project, I encountered the following error:

[ERROR] NG8001: 'app-heroes' is not a known element:

  1. If 'app-heroes' is an Angular component, please ensure that it is included in the '@Component.imports' of this component.

  2. If 'app-heroes' is a Web Component, add 'CUSTOM_ELEMENTS_SCHEMA' to the '@Component.schemas' of this component to suppress this message. [plugin angular-compiler]

    src/app/app.component.html:0:0: 0 │ ╵ ^

The error is occurring within the template of the AppComponent.

src/app/app.component.ts:9:15:
  9 │   templateUrl: './app.component.html',

Could someone offer some assistance, please? I have tried running 'ng serve --open' to view the project in my browser, but it does not seem to be working as expected.

angulartypescriptangular17

Answer №1

Success! I discovered the solution. I needed to bring in the component within app.component.ts as shown below :

import { HeroesComponent } from './heroes/heroes.component';

Furthermore, I included it in the @Component.imports section in the identical file.

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