[Vue warn]: Unknown custom element

[LiamWiddop]

I have run a fresh install through the Vue UI using the Nativescript-Vue-Web starting template and have encountered the following errors when running npm run serve:web:

This is my App.vue:

This is the component HelloWorld.vue:

And this is what is rendered:

Indeed, the <Page>, <ActionBar>, and <GridLayout> are not rendered as I would expect.

Can someone help me understand whether the Nativescript-Vue-Web starting template supports these custom elements, and if so, how to fix this?

I am using:

• Vue v2
• Typescript with class based components
• Nativescript-Vue-Web starting template

Thanks very much!