Class extends value undefined is not a constructor or null

[alexdabast]

Hi this issue was initially raised on angular repo https://github.com/angular/angular-cli/issues/28038

To fix this @angular/fire should use the same version of undici as @angular

Which @angular/* package(s) are the source of the bug?

Don't known / other

Is this a regression?

Yes

Description

After updating to version 18.1.0. I am getting the following error on ng-serve:

Watch mode enabled. Watching for file changes...
NOTE: Raw file sizes do not reflect development server per-request transformations.
Re-optimizing dependencies because lockfile has changed
  ➜  Local:   http://localhost:4200/
  ➜  press h + enter to show help
Re-optimizing dependencies because lockfile has changed
15:17:17 [vite] Error when evaluating SSR module /@fs/{pathToRepo}/.angular/cache/18.1.0/vite/deps_ssr/@angular_fire_firestore.js?v=de27081b:
|- TypeError: Class extends value undefined is not a constructor or null
    at node_modules/@firebase/auth/node_modules/undici/lib/fetch/file.js (/{pathToRepo}/.angular/cache/18.1.0/vite/deps_ssr/@angular_fire_firestore.js:5662:36)

Please provide a link to a minimal reproduction of the bug

Please provide the exception or error you saw

15:17:17 [vite] Error when evaluating SSR module /@fs/{pathToRepo}/.angular/cache/18.1.0/vite/deps_ssr/@angular_fire_firestore.js?v=de27081b:
|- TypeError: Class extends value undefined is not a constructor or null
    at node_modules/@firebase/auth/node_modules/undici/lib/fetch/file.js (/{pathToRepo}/.angular/cache/18.1.0/vite/deps_ssr/@angular_fire_firestore.js:5662:36)

Please provide the environment you discovered this bug in (run ng version)

Angular CLI: 18.1.0
Node: 18.20.2
Package Manager: npm 10.5.0
OS: darwin arm64

Angular: 18.1.0
... animations, build, cdk, cli, common, compiler, compiler-cli
... core, forms, material, platform-browser
... platform-browser-dynamic, platform-server, router, ssr

Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.1801.0
@angular-devkit/core         18.1.0
@angular-devkit/schematics   18.1.0
@angular/fire                18.0.1
@schematics/angular          18.1.0
rxjs                         7.8.1
typescript                   5.4.5
zone.js                      0.14.7

Anything else?

No

[google-oss-bot]

This issue does not seem to follow the issue template. Make sure you provide all the required information.

[jamesdaniels]

As seen in your error message, the cause of this is in Firebase JS SDK namely @firebase/auth. This should be addressed in Firebase JS SDK v11, which we are working to support in AngularFire v19.