NG0912 error after migrating (to 16) multiple components with no selector #50158
Description
Which @angular/* package(s) are the source of the bug?
core
Is this a regression?
Yes
Description
Components generated with the CLI (pre 16.x or 16.x) using --skip-selector result in the browser displaying NG0912 error, claiming that multiple of my components have colliding selector ng-component, when using Angular 16. This error is not present in at least 13, 14, and 15.
The components in question all look like this:
import { Component } from '@angular/core';
@Component({
templateUrl: './foo-with-no-selector.component.html',
styleUrls: ['./foo-with-no-selector.component.scss'],
})
export class FooWithNoSelector{ ... some stuff }
@Component({
templateUrl: './bar-with-no-selector.component.html',
styleUrls: ['./bar-with-no-selector.component.scss'],
})
export class BarWithNoSelector{ ... some stuff }These components are used only in Routing (or manually created as dialogs using material).
Afaik the convention for route only components was to omit selector. Is this change intentional or is it documented somewhere?
Please provide a link to a minimal reproduction of the bug
No response
Please provide the exception or error you saw
NG0912: Component ID generation collision detected. Components 'FooWithNoSelector' and 'BarWithNoSelector' with selector 'ng-component' generated the same component ID. To fix this, you can change the selector of one of those components or add an extra host attribute to force a different ID. Find more at https://angular.io/errors/NG0912
Please provide the environment you discovered this bug in (run ng version)
Angular CLI: 16.0.0
Node: 18.16.0
Package Manager: npm 9.6.4
OS: win32 x64
Angular: 16.0.0
... animations, cdk, cli, common, compiler, compiler-cli, core
... forms, material, material-luxon-adapter, platform-browser
... platform-browser-dynamic, router
Package Version
---------------------------------------------------------
@angular-devkit/architect 0.1600.0
@angular-devkit/build-angular 16.0.0
@angular-devkit/core 16.0.0
@angular-devkit/schematics 16.0.0
@schematics/angular 16.0.0
rxjs 7.8.1
typescript 4.9.5
Anything else?
No response