Bug Report: ɵassertType false positive error in Angular Language Service (newest VS Code extension) #63046
Description
Which @angular/* package(s) are the source of the bug?
core, language-service
Is this a regression?
Yes
Description
After the latest update of the Angular Language Service VS Code extension (today), a previously working template now throws the following error:
Property 'ɵassertType' does not exist on type 'typeof import(".../node_modules/@angular/core/index")'.
This occurs on (keydown)="..." bindings inside a template of a component that uses ReactiveFormsModule.
Example:
<input
matInput
formControlName="zaehlerstand"
[placeholder]="getPlaceholderValue()"
(keydown.enter)="handleEnter($event)"
(keydown)="forceValidation()"
/>Downgrading the extension to the previous version (~3 weeks ago) immediately resolves the issue without any code changes.
Disabling strict template type checking ("strictTemplates": false in tsconfig.json) also works around the issue, but this is not ideal.
Please provide a link to a minimal reproduction of the bug
No response
Please provide the exception or error you saw
Property 'ɵassertType' does not exist on type 'typeof import(".../node_modules/@angular/core/index")'.
Please provide the environment you discovered this bug in (run ng version)
Angular CLI: 19.2.14
Node: 20.11.1
Package Manager: npm 10.2.4
OS: win32 x64
Angular: 19.2.14
... animations, cli, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Package Version
------------------------------------------------------------
@angular-devkit/architect 0.1902.14
@angular-devkit/build-angular 19.2.14
@angular-devkit/core 19.2.14
@angular-devkit/schematics 19.2.14
@angular/cdk 19.2.18
@angular/material 19.2.18
@angular/material-moment-adapter 19.2.18
@schematics/angular 19.2.14
rxjs 7.8.2
typescript 5.8.3
zone.js 0.15.1
Anything else?
No response