The problem I encountered was in Vue3.0 + Vite + Element + SCSS

This is the VSC plugin I used

The problem is in these plugins when I started, you should have noticed that I didn’t use Vetur,

The specific problem was that vue-Helper failed and could not give intelligent prompts. After I enabled Vetur again, it returned to normal

My initial thought was that using Volar would eliminate the need to use Vetur

Vue3.0 +vite+ts+ant+less (vite+ts+ant+less) uses volar instead of vetur