`ng extract-i18n` throwing error in freshly generated Angular 19 SSR project

[json-derulo]

Command

extract-i18n

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

18.2.9

Description

In a freshly generated Angular 19 project, after adding @angular/localize, the ng extract-i18n command results in an error. In a freshly generated project without SSR, the command works fine.

Minimal Reproduction

1. Generate a new Angular 19 SSR project npx @angular/cli@next new ng19-i18n --ssr
2. Add the Angular localize package npx @angular/cli@next add @angular/localize
3. Run npx @angular/cli@next extract-i18n

Exception or Error

[error] Error: The "server" option is required when "outputMode" is set to "server".
    at normalizeOptions (/projects/ng19-i18n/node_modules/@angular/build/src/builders/application/options.js:109:19)
    at async buildApplicationInternal (/projects/ng19-i18n/node_modules/@angular/build/src/builders/application/index.js:46:31)
    at async first (/projects/ng19-i18n/node_modules/@angular-devkit/build-angular/src/builders/extract-i18n/application-extraction.js:131:22)
    at async extractMessages (/projects/ng19-i18n/node_modules/@angular-devkit/build-angular/src/builders/extract-i18n/application-extraction.js:38:27)
    at async execute (/projects/ng19-i18n/node_modules/@angular-devkit/build-angular/src/builders/extract-i18n/builder.js:83:28)

Your Environment

Angular CLI: 19.0.0-next.13
Node: 20.18.0
Package Manager: npm 10.9.0
OS: darwin x64

Angular: 19.0.0-next.11
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, platform-server
... router

Package Version

@angular-devkit/architect 0.1900.0-next.13
@angular-devkit/build-angular 19.0.0-next.13
@angular-devkit/core 19.0.0-next.13
@angular-devkit/schematics 19.0.0-next.13
@angular/cli 19.0.0-next.13
@angular/ssr 19.0.0-next.13
@schematics/angular 19.0.0-next.13
rxjs 7.8.1
typescript 5.6.3
zone.js 0.15.0

Anything else relevant?

No response

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