@name Root element was not found.
@category runtime
@shortDescription Root element was not found during bootstrap.
@description
Boostraped components are defined in the `bootstrap` property of an `@NgModule` decorator or as the first parameter of `boopstrapApplication` for standalone components.
This error happens when Angular tries to boostrap one of these components but cannot find its corresponing node in the DOM.
@debugging
This issue occurs when the selector mismatches the tag
```typescript
@Component({
selector: 'my-app',
...
})
class AppComponent {}
```
```html
```
Replace the tag with the correct one:
```html
```