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.

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.