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React-MobX错误：'decorators'插件需要'decoratorsBeforeExport'选项，其值必须是布尔值

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我收到以下错误：如果您要从Babylon / Babel 6迁移或想要使用旧的装饰器提议，您应该使用'decorators-legacy'插件而不是'decorators' .

package.json

"@babel/plugin-proposal-decorators": {
      "version": "7.1.2",
      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-decorators/-/plugin-proposal-decorators-7.1.2.tgz",
      "integrity": "sha512-YooynBO6PmBgHvAd0fl5e5Tq/a0pEC6RqF62ouafme8FzdIVH41Mz/u1dn8fFVm4jzEJ+g/MsOxouwybJPuP8Q==",
      "requires": {
        "@babel/helper-plugin-utils": "^7.0.0",
        "@babel/helper-replace-supers": "^7.1.0",
        "@babel/helper-split-export-declaration": "^7.0.0",
        "@babel/plugin-syntax-decorators": "^7.1.0"
      }
    },

 "@babel/plugin-syntax-decorators": {
      "version": "7.1.0",
      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-decorators/-/plugin-syntax-decorators-7.1.0.tgz",
      "integrity": "sha512-uQvRSbgQ0nQg3jsmIixXXDCgSpkBolJ9X7NYThMKCcjvE8dN2uWJUzTUNNAeuKOjARTd+wUQV0ztXpgunZYKzQ==",
      "requires": {
        "@babel/helper-plugin-utils": "^7.0.0"
      }
    },

"babel-plugin-syntax-decorators": {
      "version": "6.13.0",
      "resolved": "http://registry.npmjs.org/babel-plugin-syntax-decorators/-/babel-plugin-syntax-decorators-6.13.0.tgz",
      "integrity": "sha1-MSVjtNvePMgGzuPkFszurd0RrAs=",
      "dev": true
    },
    "babel-plugin-transform-decorators-legacy": {
      "version": "1.3.5",
      "resolved": "https://registry.npmjs.org/babel-plugin-transform-decorators-legacy/-/babel-plugin-transform-decorators-legacy-1.3.5.tgz",
      "integrity": "sha512-jYHwjzRXRelYQ1uGm353zNzf3QmtdCfvJbuYTZ4gKveK7M9H1fs3a5AKdY1JUDl0z97E30ukORW1dzhWvsabtA==",
      "dev": true,
      "requires": {
        "babel-plugin-syntax-decorators": "^6.1.18",
        "babel-runtime": "^6.2.0",
        "babel-template": "^6.3.0"
      }
    },
"requires": {
     "@babel/plugin-proposal-decorators": "7.1.2",
}

tsconfig.json

{
    "compilerOptions": {
        "experimentalDecorators": true,
        "allowJs": true
    }
}
reactjs decorator mobx-react

2 回答

  • 0

    错误消息有点令人困惑，但是通过一些深入的搜索，您可以使用以下方法解决它 .

    除了您在本指南中使用webpack之外，我不做任何假设 .

    您需要将babel建议装饰器添加到您的dev依赖项（您只需要在开发时间）（已经添加） .

    如果使用纱线

    yarn add --dev @babel/plugin-proposal-decorators

    其他为npm

    npm install --save-dev @babel/plugin-proposal-decorators

    然后在你的package.js文件中，找到babel config部分或添加一个（如果不存在） . 配置名称严格来说是“babel” .

    "babel": {
    "presets": [
      "react-app"
    ],
    "plugins": [
      [
        "@babel/plugin-proposal-decorators",
        {
          "legacy": true
        }
      ]
    ]
  }

    如果手动输入，请特别注意缩进 . 注意对象 "@babel/plugin-proposal-decorators" 深深地嵌套在两个数组中，所以必须这样才能工作 .

    只是为了进行健全性检查，你的devDependencies至少会如此

    "devDependencies": {
    "@babel/plugin-proposal-decorators": "^7.1.2"
  }

    现在，您可以使用纱线或npm构建您的应用程序，并且从此过上幸福的生活 .

    回复于
  • 3
    {
 "presets": ['@babel/preset-env', '@babel/preset-react'],
 "plugins": [
  ["import", { "libraryName": "antd", "libraryDirectory": "es", "style": "less" }],
  [
    "@babel/plugin-proposal-decorators",
    {
      "decoratorsBeforeExport":true
    }
  ]
 ]
}
    回复于

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