ssr+i18n throw In-memory ESM relative file should always exist #32713

 data = resource({
    loader: async (input) => {
      return firstValueFrom(this.#http.get(`test.text`, { responseType: 'text' }));
    },
  });

\➜  ssr1 git:(master) ✗npm run build
Debugger listening on ws://127.0.0.1:62952/ba55e689-9694-4a67-a90c-4fa2f7ca3f78
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.
npm warn Unknown user config "msvs_version". This will stop working in the next major version of npm.

> ssr1@0.0.0 build
> ng build        

Debugger listening on ws://127.0.0.1:62954/259aa559-5bf5-40e1-8f32-6ccece67e40d
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.

uncaughtException AssertionError [ERR_ASSERTION]: In-memory ESM relative file should always exist: 'file:///C:/code/my-project/ssr1/.angular/prerender-root/34778af1-d6e3-4e7e-85f6-68a2c814c5b3/angular-app-engine-manifest.mjs' --> './en/main.server.mjs'
    at resolve (C:\code\my-project\ssr1\node_modules\@angular\build\src\utils\server-rendering\esm-in-memory-loader\loader-hooks.js:80:31)       
    at nextResolve (node:internal/modules/esm/hooks:748:28)
    at Hooks.resolve (node:internal/modules/esm/hooks:240:30)
    at MessagePort.handleMessage (node:internal/modules/esm/worker:201:24)
    at [nodejs.internal.kHybridDispatch] (node:internal/event_target:845:20)
    at MessagePort.<anonymous> (node:internal/per_context/messageport:23:28)
    at MessagePort.callbackTrampoline (node:internal/async_hooks:130:17) {
  generatedMessage: false,
  code: 'ERR_ASSERTION',
  actual: undefined,
  expected: undefined,
  operator: 'fail',
  diff: 'simple'
}
Browser bundles
Initial chunk files   | Names            |  Raw size | Estimated transfer size
main-EQM76B7T.js      | main             | 249.94 kB |                68.45 kB
polyfills-7FR7WZWP.js | polyfills        | 136 bytes |               136 bytes
styles-5INURTSO.css   | styles           |   0 bytes |                 0 bytes

                      | Initial total    | 250.07 kB |                68.59 kB


Server bundles
Initial chunk files   | Names            |  Raw size
server.mjs            | server           | 810.29 kB |
main.server.mjs       | main.server      | 684.96 kB |
polyfills.server.mjs  | polyfills.server | 233.39 kB |
chunk-WVQMRNL5.mjs    | -                |   1.39 kB |
chunk-VB3FBMFV.mjs    | -                |   1.05 kB |

Lazy chunk files      | Names            |  Raw size
chunk-HPMYPLCO.mjs    | xhr2             |  12.22 kB |
chunk-OUZZXTQV.mjs    | xhr2             |  12.15 kB |

Prerendered 1 static route.
Application bundle generation failed. [38.307 seconds] - 2026-03-06T08:40:11.923Z

✘ [ERROR] An error occurred while prerendering route '/aa/en/test1'.

Request for: http://localhost:62982/aa/en/test1 was aborted.
TimeoutError: The operation was aborted due to timeout

Angular CLI       : 21.2.0
Angular           : 21.2.1
Node.js           : 24.10.0
Package Manager   : npm 11.6.1
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.0            │ ^21.2.0           │
│ @angular/cli              │ 21.2.0            │ ^21.2.0           │
│ @angular/common           │ 21.2.1            │ ^21.2.0           │
│ @angular/compiler         │ 21.2.1            │ ^21.2.0           │
│ @angular/compiler-cli     │ 21.2.1            │ ^21.2.0           │
│ @angular/core             │ 21.2.1            │ ^21.2.0           │
│ @angular/forms            │ 21.2.1            │ ^21.2.0           │
│ @angular/localize         │ 21.2.1            │ ^21.2.1           │
│ @angular/platform-browser │ 21.2.1            │ ^21.2.0           │
│ @angular/platform-server  │ 21.2.1            │ ^21.2.0           │
│ @angular/router           │ 21.2.1            │ ^21.2.0           │
│ @angular/ssr              │ 21.2.0            │ ^21.2.0           │
│ rxjs                      │ 7.8.2             │ ~7.8.0            │
│ typescript                │ 5.9.3             │ ~5.9.2            │
│ vitest                    │ 4.0.18            │ ^4.0.8            │