Fixing Angular2 Error: Selector 'app-root' not found

If you are encountering the error message "Selector 'app-root' not found" while working with Angular2, don't worry! This error is relatively easy to fix.

├Źndice
  1. What causes the error?
  2. How to fix the error:
    1. Step 1: Check your HTML file
    2. Step 2: Check your app.component.ts file
    3. Step 3: Check your app.module.ts file

What causes the error?

The error message appears when Angular2 is unable to locate the 'app-root' selector in your code. This can happen for a few reasons:

  • You may have misspelled the selector in your HTML file.
  • The selector may not be defined in your app.component.ts file.
  • The app component may not be properly bootstrapped in your app.module.ts file.

How to fix the error:

To fix the "Selector 'app-root' not found" error, follow these steps:

Step 1: Check your HTML file

Make sure that the selector is spelled correctly in your HTML file. It should look like this:

<app-root></app-root>

Step 2: Check your app.component.ts file

Make sure that the 'app-root' selector is defined in your app.component.ts file. It should look like this:

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})

Step 3: Check your app.module.ts file

Make sure that the app component is properly bootstrapped in your app.module.ts file. It should look like this:

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})

After making these changes, save your files and restart your server. The error should be resolved!

Hopefully, this guide has helped you fix the "Selector 'app-root' not found" error in Angular2. Remember to always double-check your code for spelling errors and ensure that all components are properly defined and bootstrapped.

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