routing

[fossil vault]

comp11 and comp12 are not displayed. I don't understand

https://stackblitz.com/edit/stackblitz-starters-gyo6zk?description=An angular-cli project based on @angular/animations, @angular/common, @angular/compiler, @angular/core, @angular/forms, @angular/platform-browser, @angular/platform-browser-dynamic, @angular/router, core-js, rxjs, tslib and zone.js&file=src%2Fmain.ts,src%2Fparent1%2Fparent1.component.ts&template=node&title=Angular Starter

[peak cloak]

There is no router-outlet in parent11, so the router can't insert the component of the child route anywhere.

[fossil vault]

thanks !
It works with your help, thank you. now I'm learning how router-outlet named works and again I'm stuck.

I updated stackblitz :
https://stackblitz.com/edit/stackblitz-starters-gyo6zk

[peak cloak]

I never use them. But they're documented. https://angular.io/guide/router-tutorial-toh#displaying-multiple-routes-in-named-outlets

[fossil vault]

I don't understand what I should do

[peak cloak]

Read the documentation I linked to. And find other sources explaining what they're for and how they work.