Syntax Error: Error: Node Sass version 5.0.0 is incompatible with ^4.0.0.

降低node-sass版本就好了,教大家一个简单的办法,vue项目中package.json的"devDependencies"模块(开发环境设置),直接在这里找到node-sass 将版本改为 “node-sass”: “^4.0.0”,

  package.json文件
  "devDependencies": {
    
    
    "node-sass": "^4.0.0",
    "sass-loader": "^7.3.1",
  }
}

然后重新输入下载依赖

cnpm install
cnpm run serve

就可以了