线上问题

vue项目，无法定位线上问题，增加如下代码可以定位到代码块

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
  transpileDependencies: true,
  devServer: {
    //开发环境下设置为编译好以后直接打开浏览器浏览
    open: true,
  },
  configureWebpack: (config) => {
    //调试JS
    config.devtool = "source-map"
  },
  css: {
    //查看CSS属于哪个css文件
    sourceMap: true,
  },
  configureWebpack: {
    resolve: {
      alias: {
        src: "@",
        components: "@/components",
        views: "@/views"
      }
    }
  },
})