错误：请安装 PostCSS 8 或更高版本我怎样才能解决这个问题？

如何解决错误：请安装 PostCSS 8 或更高版本我怎样才能解决这个问题？

这是我的 package.json 文件。我该如何解决这个问题？。我尝试将 autoprefixer 的版本更改为 9.8.6，但是没有用。请帮我解决这个问题

{
  "name": "react-tailwindcss","version": "0.1.0","private": true,"dependencies": {
  "@testing-library/jest-dom": "^5.13.0","@testing-library/react": "^11.2.7","@testing-library/user-event": "^12.8.3","react": "^17.0.2","react-dom": "^17.0.2","react-scripts": "4.0.3","web-vitals": "^1.1.2"
},"scripts": {
 "start": "npm run watch:css && react-scripts start","build": "npm run build:css && react-scripts build","test": "react-scripts test","eject": "react-scripts eject","build:css": "postcss src/assets/tailwind.css -o src/assets/main.css","watch:css": "postcss src/assets/tailwind.css -o src/assets/main.css"
},"eslintConfig": {
 "extends": [
  "react-app","react-app/jest"
 ]
},"browserslist": {
 "production": [
  ">0.2%","not dead","not op_mini all"
],"development": [
  "last 1 chrome version","last 1 firefox version","last 1 safari version"
 ]
},"devDependencies": {
 "autoprefixer": "^9.8.6","postcss-cli": "^8.3.1","tailwindcss": "^2.1.4"
 }
}

这是我安装的依赖文件。它显示请enter image description here安装 PostCSS 8 或更高版本

解决方法

看起来您已经安装了 postcss-cli，但 TailwindCSS 需要 postcss。你只需要安装它。这是所有主要包管理器的终端命令。

npm

npm i -D postcss@latest

纱线

yarn add -D postcss@latest

pnpm

pnpm i -D postcss@latest