Question

Rails 初学者和第一次海报！遇到这个控制台错误，这破坏了我的 JS。非常感谢您的帮助！！：

控制台错误

未捕获的错误：模块构建失败（来自 ./node_modules/babel-loader/lib/index.js）：错误：找不到模块'/Users/cameron/Documents/Rails Projects/main/rsvp_new/node_modules/@babel/compat-data/data/corejs3-shipped-proposals.json'。

.babelrc

{
  "presets": [
    "airbnb"
  ],
  "plugins": [
    "add-module-exports",
    ["transform-replace-object-assign", { "moduleSpecifier": "object.assign" }],
  ],
}

.package.json

    {
  "name": "rsvp_new",
  "private": true,
  "dependencies": {
    "@babel/polyfill": "^7.12.1",
    "@babel/preset-react": "^7.12.10",
    "@rails/actioncable": "^6.0.0",
    "@rails/activestorage": "^6.0.0",
    "@rails/ujs": "^6.0.0",
    "@rails/webpacker": "^6.0.0-pre.1",
    "@zxing/library": "^0.18.3",
    "babel": "^6.23.0",
    "babel-preset-env": "^1.7.0",
    "bootstrap": "^4.5.3",
    "jquery": "^3.5.1",
    "popper.js": "^1.16.1",
    "turbolinks": "^5.2.0"
  },
  "version": "0.1.0",
  "devDependencies": {
    "@babel/core": "^7.12.10",
    "@babel/preset-env": "^7.12.11",
    "babel-loader": "^8.2.2",
    "babel-preset-react": "^6.24.1",
    "webpack": "^4.44.2",
    "webpack-dev-server": "^3.11.0"
  }
}

babel.config.js

module.exports = function(api) {
  var validEnv = ['development', 'test', 'production']
  var currentEnv = api.env()
  var isDevelopmentEnv = api.env('development')
  var isProductionEnv = api.env('production')
  var isTestEnv = api.env('test')

  if (!validEnv.includes(currentEnv)) {
    throw new Error(
      'Please specify a valid `NODE_ENV` or ' +
        '`BABEL_ENV` environment variables. Valid values are "development", ' +
        '"test", and "production". Instead, received: ' +
        JSON.stringify(currentEnv) +
        '.'
    )
  }

  return {
    presets: [
      isTestEnv && [
        '@babel/preset-env',
        {
          targets: {
            node: 'current'
          }
        }
      ],
      (isProductionEnv || isDevelopmentEnv) && [
        '@babel/preset-env',
        {
          forceAllTransforms: true,
          useBuiltIns: 'entry',
          corejs: 3,
          modules: false,
          exclude: ['transform-typeof-symbol']
        }
      ]
    ].filter(Boolean),
    plugins: [
      'babel-plugin-macros',
      '@babel/plugin-syntax-dynamic-import',
      isTestEnv && 'babel-plugin-dynamic-import-node',
      '@babel/plugin-transform-destructuring',
      [
        '@babel/plugin-proposal-class-properties',
        {
          loose: true
        }
      ],
      [
        '@babel/plugin-proposal-object-rest-spread',
        {
          useBuiltIns: true
        }
      ],
      [
        '@babel/plugin-transform-runtime',
        {
          helpers: false,
          regenerator: true,
          corejs: false
        }
      ],
      [
        '@babel/plugin-transform-regenerator',
        {
          async: false
        }
      ]
    ].filter(Boolean)
  }
}

Answer 1

设法解决了它，尽管如何解决它仍然是个谜。

我首先使用 git checkout 并返回到较早的提交以查看错误是否仍然存在。谢天谢地，错误消失了。然后我返回到我最近的提交，错误似乎已经解决。

很抱歉，这个答案帮不上忙。但是，如果对遇到此问题的任何人有任何建议，请重新访问您认为错误没有持续存在的早期提交，并查看错误是否仍然出现在控制台中。

如果我找到更多信息，我会发布更多相关信息。

模块构建失败 - 错误：找不到模块 (Babel & Rails 6)

1 个答案: