Questions about github actions yml

[54108]

Warning: No files were found with the provided path: _site. No artifacts will be uploaded.
按文章的来但是出现了这个报错
`name: Build and Test

on:
push:
branches:
- main

jobs:
build:
runs-on: ubuntu-latest

steps:
- name: Checkout Repository
  uses: actions/checkout@v4
  
- name: Setup Node.js environment
  uses: actions/[email protected]
  with:
    node-version: 20
    
- run: npm install -g bats

- run: bats -v
  
- name: Upload a Build Artifact
  uses: actions/[email protected]
  with:
    name: 'my-blog'
    path: '_site'
    `