Unable to debug library in VS Code since 19.2.0 #29764
Description
Command
serve
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
19.1.9
Description
With angular-cli 19.2.0, you can no longer debug libraries using Visual Studio Code.
Minimal Reproduction
git clone https://github.com/acohenOT/angular191.git
cd angular191
npm install
ng build viewer --configuration development # this builds the library `viewer`
code . # open project in VS Code
Add breakpoint in library component constructor
Select Run > Start Debugging
Open http://localhost:4200/viewer which loads the library component
Exception or Error
Your Environment
ng version
_ _ ____ _ ___
/ \ _ __ __ _ _ _| | __ _ _ __ / ___| | |_ _|
/ △ \ | '_ \ / _` | | | | |/ _` | '__| | | | | | |
/ ___ \| | | | (_| | |_| | | (_| | | | |___| |___ | |
/_/ \_\_| |_|\__, |\__,_|_|\__,_|_| \____|_____|___|
|___/
Angular CLI: 19.2.0
Node: 22.14.0
Package Manager: npm 11.2.0
OS: win32 x64
Angular: 19.2.1
... common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Package Version
---------------------------------------------------------
@angular-devkit/architect 0.1902.0
@angular-devkit/build-angular 19.2.0
@angular-devkit/core 19.2.0
@angular-devkit/schematics 19.2.0
@angular/cli 19.2.0
@schematics/angular 19.2.0
ng-packagr 19.2.0
rxjs 7.8.2
typescript 5.7.3
zone.js 0.15.0
Anything else relevant?
In package.json change cli dependencies to 19.1.9 and run npm install, then the steps above work and the breakpoint is hit.
"@angular-devkit/build-angular": "19.1.9",
"@angular/cli": "19.1.9",