突然可选链报错,有没有大佬看下?

Question

Module parse failed: Unexpected token (99:31)
File was processed with these loaders:
 * ./node_modules/_cache-loader@4.1.0@cache-loader/dist/cjs.js
 * ./node_modules/_babel-loader@8.2.5@babel-loader/lib/index.js
 * ./node_modules/_eslint-loader@2.2.1@eslint-loader/index.js
You may need an additional loader to handle the result of these loaders.
|   let title = '提示';
|   if (isString(options)) content = options;
|    else if (isObject(options)) {
>     content = options.content ?? content; //就是这里报错了 ?? 操作符
|     title = options.title ?? title;
|   }

 @ ./src/main.js 21:0-49 39:29-41
 @ multi ./node_modules/_webpack-dev-server@3.11.3@webpack-dev-server/client?https://192.168.128.30:8080&sockPath=/sockjs-node (webpack)/hot/dev-server.js ./src/main.js

?? 操作符 就开始报错了,之前都是好好的,啊啊啊 突然懵逼了

贴上我的package.json

{
  "name": "loading",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "build:stage": "vue-cli-service build --mode staging",
    "build:test": "vue-cli-service build --mode test",
    "serve": "cross-env NODE_OPTIONS='--max-http-header-size=100000' vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "@antv/x6": "^1.29.1",
    "@antv/x6-vue-shape": "^1.2.10",
    "@vue/composition-api": "^1.4.2",
    "axios": "^0.24.0",
    "compression-webpack-plugin": "^5.0.1",
    "core-js": "^3.6.5",
    "echarts": "^5.3.0",
    "echarts-liquidfill": "^3.1.0",
    "element-ui": "^2.15.5",
    "html2canvas": "^1.3.3",
    "jquery": "^3.6.0",
    "localforage": "^1.10.0",
    "lodash": "^4.17.21",
    "mockjs": "^1.1.0",
    "moment": "^2.29.1",
    "monaco-editor": "0.30.0",
    "monaco-editor-webpack-plugin": "^6.0.0",
    "script-ext-html-webpack-plugin": "^2.1.5",
    "shuyilink-ui": "^0.1.61",
    "v-charts": "^1.19.0",
    "vue": "^2.6.11",
    "vue-clipboard2": "^0.3.3",
    "vue-i18n": "^8.26.8",
    "vue-json-excel": "^0.3.0",
    "vue-pdf": "^4.3.0",
    "vue-router": "^3.2.0",
    "vuedraggable": "^2.24.3",
    "vuex": "^3.4.0",
    "vuex-persistedstate": "^4.1.0",
    "xlsx": "^0.18.5"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "~4.5.0",
    "@vue/cli-plugin-eslint": "~4.5.0",
    "@vue/cli-plugin-router": "~4.5.0",
    "@vue/cli-plugin-vuex": "~4.5.0",
    "@vue/cli-service": "~4.5.0",
    "@vue/eslint-config-standard": "^5.1.2",
    "babel-eslint": "^10.1.0",
    "cache-loader": "^4.1.0",
    "eslint": "^6.7.2",
    "eslint-plugin-import": "^2.20.2",
    "eslint-plugin-node": "^11.1.0",
    "eslint-plugin-promise": "^4.2.1",
    "eslint-plugin-standard": "^4.0.0",
    "eslint-plugin-vue": "^6.2.2",
    "hard-source-webpack-plugin": "^0.13.1",
    "node-sass": "^4.12.0",
    "sass-loader": "^8.0.2",
    "speed-measure-webpack-plugin": "^1.5.0",
    "thread-loader": "^3.0.4",
    "vue-template-compiler": "^2.6.11"
  },
  "eslintConfig": {
    "root": true,
    "env": {
      "node": true
    },
    "extends": [
      "plugin:vue/essential",
      "@vue/standard"
    ],
    "parserOptions": {
      "parser": "babel-eslint"
    },
    "rules": {}
  },
  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not dead"
  ]
}

.eslintrc.js

module.exports = {
  root: true,
  parserOptions: {
    parser: 'babel-eslint',
    sourceType: 'module'
  },
  env: {
    browser: true,
    node: true,
    es6: true
  }
}

Answer 1

自问自答

参考 https://stackoverflow.com/questions/63423384/you-may-need-an-additional-loader-to-handle-the-result-of-these-loaders?answertab=trending#tab-top

npm cache clean --force 
rm -rf node_modules && rm -f package-lock.json && cnpm i