问题
I'm trying to use Angular 4 with Plunker and I can't manage to add a new component. The URL is: https://plnkr.co/edit/1umcXTeug2o6eiZ89rLl?p=preview
I've just created a new component - mycomponent.ts - with the minimum of declarations.
Then, in app.ts, I'm adding the importing declaration:
import {MyComponent} from "./mycomponent";
and add the component in the declarations array within the @NgModule decorator:
declarations: [ App, MyComponent ],
This last bit breaks it and returns a 404 XHR error. So far I just played with changing the import declaration ("./" or not), inline/URL template for the component template, chrome/firefox browsers but nothing works so far. I'm inclined to think it's Plunker's fault :S
回答1:
Change the name of mycomponent.ts to src/mycomponent.ts and it will work.
The error is because it can't include the component (bad pathing).
Don't forget to add <combo-compo></combo-compo> to your app.ts template.
Check it out:
来源：https://stackoverflow.com/questions/43678614/angular-4-1-0-in-plunker-adding-component-returns-404-xhr-error