模块解析失败:意外令牌(257:106)您可能需要一个适当的加载程序来处理此文件类型

Question

在我的应用程序上运行“npm更新”之后，我突然收到以下错误：

Compiled with problems:

ERROR in ./node_modules/pako/lib/zlib/trees.js 257:106

Module parse failed: Unexpected token (257:106)
File was processed with these loaders:
 * ./node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
|  *     not null.
|  */
> function gen_bitlen(s, desc) /*    deflate_state *s;*/ /*    tree_desc *desc;    /* the tree descriptor */*/{
|   var tree = desc.dyn_tree;
|   var max_code = desc.max_code;

真奇怪。因此，我将其与运行在不同工作站上的相同应用程序进行比较，使用相同的代码，但在我使用而不是的地方，运行的是“npm更新”。这个应用程序起作用了，没什么好惊讶的。

我见过其他帖子也有这个错误，但它们的解决方案似乎不适用于我的环境。

我不明白为什么它不能在我的主工作站上工作。如果我从工作站复制node_modules，应用程序就会启动良好。但是，一旦我删除node_modules和Packy-lock.json并重新安装，应用程序就不会启动。我已经删除了node_modules/Packy-lock.json/清除npm缓存。帮不上忙。

我正在通过'npm‘比较模块版本，它们在两个工作站上都是相同的。

它们都运行着NodeJS 8.12.0和NPM8.19.2。

我查看了它正在错误运行的文件(pako/lib/zlib/trees.js)，在这两个系统上都是相同的。

我不知道什么是'pako‘，但使用'npm解释帕克’似乎与pdf-lib有关，后者从未更新过。

我的应用程序是用创建-反应-应用程序构建的。

我完全不知所措。这是我的package.json

{
  "name": "foo",
  "version": "0.1.0",
  "description": "Foo",
  "contributors": [],
  "license": "UNLICENSED",
  "private": true,
  "dependencies": {
    "@coreui/chartjs": "^2.0.0",
    "@coreui/coreui-pro": "^3.4.2",
    "@coreui/icons": "^2.1.0",
    "@coreui/icons-pro": "^2.0.3",
    "@coreui/icons-react": "^1.1.0",
    "@coreui/react": "^3.4.6",
    "@coreui/react-chartjs": "^1.1.0",
    "@coreui/utils": "^1.3.1",
    "@fortawesome/fontawesome-free-solid": "^5.0.13",
    "@fortawesome/fontawesome-svg-core": "^6.1.1",
    "@fortawesome/free-regular-svg-icons": "^6.1.1",
    "@fortawesome/free-solid-svg-icons": "^6.1.1",
    "@fortawesome/react-fontawesome": "^0.1.18",
    "@nadavshaar/react-grid-table": "^1.0.0",
    "@pdf-lib/fontkit": "^1.1.1",
    "@react-firebase/auth": "^0.2.10",
    "ag-grid-community": "^25.3.0",
    "ag-grid-react": "^25.3.0",
    "arithmetic": "^1.0.1",
    "bootstrap": "^5.2.0",
    "classnames": "^2.3.1",
    "codemirror": "^5.63.3",
    "core-js": "^3.19.1",
    "downloadjs": "^1.4.7",
    "firebase": "^9.12.1",
    "firebase-admin": "^11.0.1",
    "firebaseui": "^6.0.1",
    "formik": "^2.2.9",
    "mobx": "^6.3.3",
    "mobx-react": "^7.1.0",
    "pdf-lib": "^1.17.1",
    "prop-types": "^15.7.2",
    "random-id": "^1.0.4",
    "react": "^17.0.2",
    "react-app-polyfill": "^2.0.0",
    "react-awesome-button": "^6.5.1",
    "react-big-calendar": "^0.33.6",
    "react-bootstrap": "^2.4.0",
    "react-collapsible": "^2.10.0",
    "react-cookie-consent": "^8.0.1",
    "react-dom": "^17.0.2",
    "react-firebase-hooks": "^5.0.3",
    "react-firebaseui": "^6.0.0",
    "react-grid-layout": "^1.3.0",
    "react-range": "^1.8.12",
    "react-redux": "7.2.4",
    "react-router-dom": "^5.3.0",
    "react-select": "^4.3.1",
    "react-text-mask-hoc": "^0.11.0",
    "react-toastify": "^9.0.8",
    "reactstrap": "^8.10.0",
    "redux": "4.1.0",
    "rpg-dice-roller": "1.6.0",
    "sass": "^1.55.0",
    "sillyname": "^0.1.0",
    "spinkit": "2.0.1",
    "string-math": "^1.2.2",
    "styled-components": "^5.3.3",
    "yup": "^0.32.11"
  },
  "devDependencies": {
    "mutationobserver-shim": "^0.3.7",
    "react-scripts": "^5.0.0"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "test:cov": "npm test -- --coverage --watchAll=false",
    "test:debug": "react-scripts --inspect-brk test --runInBand",
    "eject": "react-scripts eject",
    "zip": "git archive -o coreui-pro-react-admin-template-v$npm_package_version.zip -9 HEAD"
  },
  "bugs": {
    "url": "https://github.com/coreui/coreui-free-react-admin-template/issues"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 10",
    "not op_mini all"
  ],
  "jest": {
    "collectCoverageFrom": [
      "src/**/*.{js,jsx}",
      "!**/*index.js",
      "!src/serviceWorker.js",
      "!src/polyfill.js"
    ]
  },
  "engines": {
    "node": ">=8.16",
    "npm": ">=6"
  }
}

Answer 1

我做了个解决办法。我比较了我的项目的旧的和新的package-lock.json，并看到一些@babel版本更改为v7.20.2 (2022年11月4日)。我用旧的一个覆盖了新的package-lock.json，我的react应用程序又成功地运行了。

然后，我在我的package.json中更改(降级)了一些@babel包，它解决了这个问题：

将这一行放入您的package.json文件：

"@babel/core": "7.19.6",
"@babel/generator": "7.19.6",
"@babel/compat-data": "7.19.4",
"@babel/helper-compilation-targets": "7.19.3",
"@babel/helper-create-class-features-plugin":"7.19.0",
"@babel/helper-module-transforms":"7.19.6",

Answer 2

https://github.com/babel/babel/issues/15132

巴贝尔解决了他们的问题。您可以使用最新的版本，它现在应该可以工作。(我核实了)

Answer 3

扩展@Attila的答案，如果您正在使用CRA，您可以在您的决议中使用package.json

{
    "name": "app-name",
    "version": "1.0.0",
    "dependencies": {
      ...
    },
    ...
    "resolutions": {
      "@babel/core": "7.19.6",
      "@babel/generator": "7.19.6",
      "@babel/compat-data": "7.19.4",
      "@babel/helper-compilation-targets": "7.19.3",
      "@babel/helper-create-class-features-plugin": "7.19.0",
      "@babel/helper-module-transforms": "7.19.6",
      "babel-loader": "8.2.5"
    }
  }