运行 npm run build 时出现问题。

Question

我正在运行npm run build，但是出现了以下错误：

Creating an optimized production build...
Failed to compile.

HookWebpackError: Cannot read properties of undefined (reading 'e')
-- inner error --
TypeError: Cannot read properties of undefined (reading 'e')
Generated code for C:\Users\Gerso\OneDrive\Documentos\React JS\home\node_modules\css-loader\dist\cjs.js??ruleSet[1].rules[1].oneOf[5].use[1]!C:\Users\Gerso\OneDrive\Documentos\React JS\home\node_modules\postcss-loader\dist\cjs.js??ruleSet[1].rules[1].oneOf[5].use[2]!C:\Users\Gerso\OneDrive\Documentos\React JS\home\node_modules\source-map-loader\dist\cjs.js!C:\Users\Gerso\OneDrive\Documentos\React JS\home\src\index.css
 1 | __webpack_require__.r(__webpack_exports__);
 2 | /* harmony import */ var _node_modules_css_loader_dist_runtime_sourceMaps_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__("C:\\Users\\Gerso\\OneDrive\\Documentos\\React JS\\home\\node_modules\\babel-loader\\lib\\index.js??ruleSet[1].rules[1].oneOf[4]!C:\\Users\\Gerso\\OneDrive\\Documentos\\React JS\\home\\node_modules\\source-map-loader\\dist\\cjs.js!C:\\Users\\Gerso\\OneDrive\\Documentos\\React JS\\home\\node_modules\\css-loader\\dist\\runtime\\sourceMaps.js");
 3 | /* harmony import */ var _node_modules_css_loader_dist_runtime_sourceMaps_js__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_node_modules_css_loader_dist_runtime_sourceMaps_js__WEBPACK_IMPORTED_MODULE_0__);
 4 | /* harmony import */ var _node_modules_css_loader_dist_runtime_api_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__("C:\\Users\\Gerso\\OneDrive\\Documentos\\React JS\\home\\node_modules\\babel-loader\\lib\\index.js??ruleSet[1].rules[1].oneOf[4]!C:\\Users\\Gerso\\OneDrive\\Documentos\\React JS\\home\\node_modules\\source-map-loader\\dist\\cjs.js!C:\\Users\\Gerso\\OneDrive\\Documentos\\React JS\\home\\node_modules\\css-loader\\dist\\runtime\\api.js");
 5 | /* harmony import */ var _node_modules_css_loader_dist_runtime_api_js__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_node_modules_css_loader_dist_runtime_api_js__WEBPACK_IMPORTED_MODULE_1__);
 6 | // Imports
 7 |
 8 |
 9 | var ___CSS_LOADER_EXPORT___ = _node_modules_css_loader_dist_runtime_api_js__WEBPACK_IMPORTED_MODULE_1___default()((_node_modules_css_loader_dist_runtime_sourceMaps_js__WEBPACK_IMPORTED_MODULE_0___default()));
10 | // Module
11 | ___CSS_LOADER_EXPORT___.push([module.id, ".font-msg {\r\n  font-family: 'Hanalei Fill', cursive;\r\n  border: 100px;\r\n}\r\n\r\n.skillHover:hover{\r\n  background-color: #ebebeb !important;\r\n  border-left: 10px solid midnightblue !important;\r\n  border-radius: 0% !important;\r\n  box-shadow: rgba(17, 17, 26, 0.1) 0px 4px 16px, rgba(17, 17, 26, 0.1) 0px 8px 24px, rgba(17, 17, 26, 0.1) 0px 16px 56px;\r\n}\r\n\r\n.textSkill{\r\n  color: rgb(124, 124, 124);\r\n  font-size: 1rem;\r\n}\r\n\r\n.contact{\r\n  margin: auto !important;\r\n  background-color: #ebebeb !important;\r\n  background:'#f1f1f1' !important;\r\n  border-radius:'10px'  !important;\r\n}\r\n\r\n.text404{\r\n  color: midnightblue !important;;\r\n}\r\n\r\n@media (max-width: 700px){\r\n  .image{\r\n    height: auto !important;\r\n  }\r\n\r\n  .logobrain{\r\n    height: 40vh !important;\r\n    width: 40vh !important;\r\n  }\r\n} ", "",{"version":3,"sources":["webpack://./src/index.css"],"names":[],"mappings":"AAAA;EACE,oCAAoC;EACpC,aAAa;AACf;;AAEA;EACE,oCAAoC;EACpC,+CAA+C;EAC/C,4BAA4B;EAC5B,uHAAuH;AACzH;;AAEA;EACE,yBAAyB;EACzB,eAAe;AACjB;;AAEA;EACE,uBAAuB;EACvB,oCAAoC;EACpC,+BAA+B;EAC/B,gCAAgC;AAClC;;AAEA;EACE,8BAA8B;AAChC;;AAEA;EACE;IACE,uBAAuB;EACzB;;EAEA;IACE,uBAAuB;IACvB,sBAAsB;EACxB;AACF","sourcesContent":[".font-msg {\r\n  font-family: 'Hanalei Fill', cursive;\r\n  border: 100px;\r\n}\r\n\r\n.skillHover:hover{\r\n  background-color: #ebebeb !important;\r\n  border-left: 10px solid midnightblue !important;\r\n  border-radius: 0% !important;\r\n  box-shadow: rgba(17, 17, 26, 0.1) 0px 4px 16px, rgba(17, 17, 26, 0.1) 0px 8px 24px, rgba(17, 17, 26, 0.1) 0px 16px 56px;\r\n}\r\n\r\n.textSkill{\r\n  color: rgb(124, 124, 124);\r\n  font-size: 1rem;\r\n}\r\n\r\n.contact{\r\n  margin: auto !important;\r\n  background-color: #ebebeb !important;\r\n  background:'#f1f1f1' !important;\r\n  border-radius:'10px'  !important;\r\n}\r\n\r\n.text404{\r\n  color: midnightblue !important;;\r\n}\r\n\r\n@media (max-width: 700px){\r\n  .image{\r\n    height: auto !important;\r\n  }\r\n\r\n  .logobrain{\r\n    height: 40vh !important;\r\n    width: 40vh !important;\r\n  }\r\n} "],"sourceRoot":""}]);
12 | // Exports
13 | ___CSS_LOADER_EXPORT___.locals = {};
14 | /* harmony default export */ __webpack_exports__.d.e.f.a.u.l.t = (___CSS_LOADER_EXPORT___);
15 |

我检查我的 package.json

  "dependencies": {
    "@emotion/react": "^11.6.0",
    "@emotion/styled": "^11.6.0",
    "@fontsource/roboto": "^4.5.1",
    "@material-ui/core": "^4.12.3",
    "@material-ui/icons": "^4.11.2",
    "@mui/material": "^5.1.1",
    "@testing-library/jest-dom": "^5.14.1",
    "@testing-library/react": "^11.2.7",
    "@testing-library/user-event": "^12.8.3",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-responsive-image": "^5.0.0",
    "react-router-dom": "^5.3.0",
    "react-scripts": "^5.0.1",
    "react-tooltip": "^4.2.21",
    "responsive-img-material-ui": "^2.2.0",
    "web-vitals": "^1.1.2"
  },

我觉得应该没问题，但为什么构建时会出错呢？

我尝试删除 node_modules 文件夹，但没有用，然后我又尝试删除 package-lock.json 文件，还是不行。

- Jhon Estrada

---

我刚刚遇到了完全相同的问题，之前没有出现过，很奇怪。 - ProgrammingFreak

这太奇怪了，问题来自于node_modules文件，这是不可能的。 - Jhon Estrada

我也遇到了同样的问题，但只在我的远程（Vercel）构建中出现。本地工作正常。这篇帖子建议将webpack降级到5.82.0版本，但对我没有起作用。 - Chris J. Zähller

Answer 1

降级到5.82.1版本 您可以在此处查看讨论：https://github.com/webpack/webpack/issues/17213

我确认它有效：

在package.json中添加 对于npm

"overrides": {
   "webpack":"5.82.1"
},

对于 yarn

"resolutions": {
   "webpack":"5.82.1"
},

- Fernando Muñoz

---

这里也出现了同样的错误，但是这个修改并没有解决它。我正在尝试构建一个昨天开始的React项目。 - Cirrocumulus

请为了其他初学者的利益补充一下，添加这个修改后你需要删除 package-lock.json 和 node_modules 文件夹，并执行 npm install。感谢您的快速修复。 - Cirrocumulus