请求vuepress启动报错解决方案?

Question

安装了个vuepress，运行的时候直接报错

百度了半天又说webpack降级的（我是webpack5），降级确实好使了但是@vue/cli这些又是5的版本，vuepress是不报错了，但是npm run serve的时候又报错了。而且我弄了个新工程安装webpack5也是能启动vuepress的。所以这到底是啥原因
附上依赖版本号

 "dependencies": {
    "core-js": "^3.8.3",
    "vue": "^2.7.10"
  },
  "devDependencies": {
    "@babel/core": "^7.12.16",
    "@babel/eslint-parser": "^7.12.16",
    "@vue/cli-plugin-babel": "~5.0.0",
    "@vue/cli-plugin-eslint": "~5.0.0",
    "@vue/cli-service": "~5.0.0",
    "babel-core": "^6.26.3",
    "babel-loader": "^8.2.5",
    "babel-preset-env": "^1.7.0",
    "babel-plugin-import": "^1.13.5",
    "babel-plugin-module-resolver": "^4.1.0",
    "clean-webpack-plugin": "^4.0.0",
    "cross-env": "^7.0.3",
    "css-loader": "^3.6.0",
    "eslint": "^7.32.0",
    "eslint-plugin-vue": "^8.0.3",
    "gulp": "^4.0.2",
    "gulp-minify-css": "^1.2.4",
    "gulp-sass": "^5.1.0",
    "html-withimg-loader": "^0.1.16",
    "sass": "^1.53.0",
    "node-sass": "^6.0.1",
    "sass-loader": "^10.2.1",
    "vant": "^2.12.48",
    "vue-loader": "^15.10.0",
    "vue-template-compiler": "^2.7.10",
    "vuepress": "^1.9.7",
    "webpack": "^5.73.0",
    "webpack-cli": "^4.10.0"
  },

新工程不报错

 "dependencies": {
    "core-js": "^3.8.3",
    "vue": "^2.6.14"
  },
  "devDependencies": {
    "@babel/core": "^7.12.16",
    "@babel/eslint-parser": "^7.12.16",
    "@vue/cli-plugin-babel": "~5.0.0",
    "@vue/cli-plugin-eslint": "~5.0.0",
    "@vue/cli-service": "~5.0.0",
    "eslint": "^7.32.0",
    "eslint-plugin-vue": "^8.0.3",
    "vue-template-compiler": "^2.6.14",
    "vuepress": "^1.9.7",
    "webpack": "^5.74.0",
    "webpack-cli": "^4.10.0"
  },

Answer 1

利用排除法发现是vue-loader的问题