angular: bug(language-service) components told as not included until restart

I’m submitting a …

[X] bug report

Current behavior I’m using @angular/language-service directly from TypeScript 2.2 and 2.3 language service extension, with that line in tsconfig.json : "plugins": [{ "name": "@angular/language-service" }]

When creating a new component and declaring it in some module (manually or with ng g component test) @angular/language-service raises an error, telling :

[ts] Component 'TestComponent' is not included in a module and will not be available inside a template.

But it is. The app works very well in the browser. The only way to get rid of the error is to restart the editor (VS Code in my case).

I use the language service in my courses, to help the students, and it’s a blocking issue, as it confuses them instead of helping them. And it’s blocking for everyone, as we can’t seriously restart our editor each time we create a component.

Same for services and others.

Another consequence of this : the new component is not suggested by Intellisense in other templates.

Expected behavior Declared components (and others) should not raise an error. @angular/language-service should keep its internal check up to date in real time to know what is declared or not.

And Intellisense should be up to date in real time too.

• Angular version: 4.0.0-rc.2

• Language: TypeScript 2.2.1 and 2.3.0-dev.20170306