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after upgrade to 20 tests fail #30413

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@sysmat

Description

@sysmat

Command

update

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

19

Description

  1. After running ng update @angular/core@20 @angular/cli@20
  2. Then npm run test I get error

Minimal Reproduction

npm run test

Exception or Error


 Error: Cannot find module '@angular-devkit/build-angular/plugins/karma'

Your Environment

Angular CLI: 20.0.0
Node: 22.15.1
Package Manager: npm 10.9.2
OS: win32 x64

Angular: 20.0.0
... animations, build, cli, common, compiler, compiler-cli, core
... forms, language-service, localize, platform-browser
... platform-browser-dynamic, router

Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.1902.13
@angular-devkit/core         19.2.13
@angular-devkit/schematics   19.2.13
@schematics/angular          20.0.0
ng-packagr                   20.0.0
rxjs                         7.8.2
typescript                   5.8.3
zone.js                      0.15.1

Anything else relevant?

  • I'm using karma.conf.js
frameworks: ['jasmine', '@angular-devkit/build-angular'],
require('karma-jasmine'),
     require('karma-chrome-launcher'),
     require('karma-jasmine-html-reporter'),
     require('karma-coverage'),
     require('karma-spec-reporter'),
     require('@angular-devkit/build-angular/plugins/karma'),
     require('karma-junit-reporter'),

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