ng generate application produces a missing stylesheet when a workspace component type is configured #34684

Hi Angular team!

I found a case where a newly generated application fails to build when the workspace has a default component type configured.

Command

generate, build

Description

With "@schematics/angular:component": { "type": "component" } in the workspace-level schematics section of angular.json, generating an application with the 2025 file naming style produces app.component.css, but the generated app.ts references ./app.css.

As a result, the application fails its first build with NG2008. Both app.ts and an extra app.component.ts are generated.

Minimal Reproduction

1. Create a workspace:

   ng new component-type-repro --create-application=false --defaults --package-manager=npm --skip-git
   cd component-type-repro

2. Add the following at the top level of angular.json (alongside projects):

   "schematics": {
     "@schematics/angular:component": {
       "type": "component"
     }
   }

3. Generate and build an application:

   ng generate application demo --file-name-style-guide=2025 --style=css --ssr=false --skip-install
   ng build demo --configuration=development

Actual behavior

The generated files include:

projects/demo/src/app/app.ts
projects/demo/src/app/app.component.ts
projects/demo/src/app/app.component.css

There is no app.css, but app.ts contains:

styleUrl: './app.css',

Expected behavior

The root component files and their references should consistently follow the selected application naming style: app.ts, app.html, and app.css for 2025. The generated application should build successfully.

The workspace component default should still apply when generating ordinary components separately.

Exception or Error

✘ [ERROR] NG2008: Could not find stylesheet file './app.css'. [plugin angular-compiler]

    projects/demo/src/app/app.ts:7:12:
      7 │   styleUrl: './app.css',
        ╵             ~~~~~~~~~~~

Your Environment

Reproduced with the locally built CLI from main at d503592, using the repository's Bazel E2E runner. Its ng version output reports:

Angular CLI       : 22.3.0-next.5
Angular           : 22.3.0-next.4
Node.js           : 24.15.0
Package Manager   : npm 12.0.2
Operating System  : darwin x64

I have not established the last working version.

Anything else relevant?

• feat(@schematics/angular): support different file name style guides in ng new #31053 introduced the file naming style option and describes the 2025 root component filename as app.ts.
• fix(@schematics/angular): set explicit type for the app-shell component #34450 and fix(@schematics/angular): set explicit type for the module --route component #34472 addressed similar inheritance of the workspace component type in the app-shell and routed-module schematics. This report concerns the application schematic.

The application schematic explicitly sets the component type for the 2016 style, but leaves it unspecified for 2025. It appears that the workspace default is inherited during component generation while the application templates continue to use the 2025 filenames.

I have a local fix and an E2E regression test for this case and will follow up with a PR. Thanks for taking a look!