1、npm  install
2、npm run dev
3、遇到报错：TypeError [ERR_INVALID_CALLBACK]: Callback must be a function
     打开build/webpack.dev.config.js，替换以下内容
	fs.write(fd, buf, 0, buf.length, 0, function(err, written, buffer) {});
           =>fs.write(fd, buf, 0, 'utf-8', function(err, written, buffer) {});
     重新执行npm run dev即可