react-native "Export statement may only appear at top level" 在清理项目之前工作正常我如何找出问题？

Question

我只在网上看到有关此消息的 babelrc 等方面的更改。我试图删除给我这个错误的依赖项，然后下一个依赖项似乎评估了 returns 相同的消息。

错误来自我的 node_modules 文件夹的 any/all，代码是正确的。我猜我的开发依赖项中的某个版本发生了变化，但不确定如何追踪它...

我使用的是我知道的 RN 61.5，但这是一个生产环境，无法更新 atm。请提供有关在哪里查找问题的帮助？

    "dependencies": {
        "@nartc/react-native-barcode-mask": "1.1.5",
        "@react-native-community/async-storage": "1.7.1",
        "@react-native-community/masked-view": "0.1.5",
        "@react-native-community/netinfo": "6.0.2",
        "@react-native-community/picker": "1.6.5",
        "@reduxjs/toolkit": "1.2.3",
        "clone": "2.1.2",
        "expo-keep-awake": "8.0.0",
        "expo-linear-gradient": "8.0.0",
        "lodash": "4.17.19",
        "moment": "2.24.0",
        "react": "16.9.0",
        "react-native": "0.61.5",
        "react-native-ble-manager": "git+https:/react-native-ble-manager.git#mergeUpstreamv750",
        "react-native-camera": "3.15.1",
        "react-native-date-picker": "2.7.12",
        "react-native-device-battery": "2.0.0",
        "react-native-device-info": "5.5.1",
        "react-native-elements": "^3.4.2",
        "react-native-exception-handler": "^2.10.10",
        "react-native-fs": "2.16.4",
        "react-native-gesture-handler": "1.5.3",
        "react-native-json-tree": "^1.3.0",
        "react-native-lock-task": "1.0.8",
        "react-native-masked-text": "1.13.0",
        "react-native-modal": "11.5.4",
        "react-native-reanimated": "1.4.0",
        "react-native-restart": "0.0.17",
        "react-native-safe-area-context": "0.6.2",
        "react-native-screens": "2.0.0-alpha.23",
        "react-native-svg": "12.0.3",
        "react-native-unimodules": "0.7.0",
        "react-native-vector-icons": "6.6.0",
        "react-native-version-number": "0.3.6",
        "react-navigation": "4.1.1",
        "react-navigation-animated-switch": "0.5.5",
        "react-navigation-header-buttons": "3.0.5",
        "react-navigation-hooks": "1.1.0",
        "react-navigation-stack": "2.0.13",
        "react-redux": "7.1.3",
        "redux": "4.0.5",
        "redux-saga": "1.1.3",
        "redux-storage": "4.1.2",
        "redux-storage-engine-reactnativeasyncstorage": "1.0.7",
        "reselect": "4.0.0",
        "sedcommon": "git+https://sedcommon.git#p2.3.6",
        "semver": "7.3.2",
        "socket.io-client": "4.1.3",
        "styled-components": "5.0.0",
        "ts-optchain": "0.1.8"
    },
    "devDependencies": {
        "@babel/core": "^7.7.7",
        "@babel/runtime": "^7.7.7",
        "@carimus/metro-symlinked-deps": "^1.1.0",
        "@react-native-community/eslint-config": "^0.0.6",
        "@types/jest": "~26.0.13",
        "@types/lodash": "^4.14.153",
        "@types/node": "^14.0.6",
        "@types/react": "^16.9.17",
        "@types/react-native": "^0.60.30",
        "@types/react-navigation": "^3.4.0",
        "@types/react-redux": "^7.1.7",
        "@types/react-test-renderer": "^16.9.1",
        "@types/socket.io": "^2.1.4",
        "@types/styled-components": "^4.4.2",
        "@typescript-eslint/eslint-plugin": "^2.26.0",
        "@typescript-eslint/parser": "^2.26.0",
        "apk-parser": "^0.1.7",
        "babel-jest": "^24.9.0",
        "babel-plugin-dynamic-import-node": "^2.3.0",
        "babel-plugin-module-resolver": "^4.0.0",
        "eslint": "^6.8.0",
        "eslint-config-prettier": "^6.10.1",
        "eslint-plugin-prettier": "^3.1.2",
        "eslint-plugin-react": "^7.19.0",
        "husky": "^4.2.3",
        "jest": "^26.4.2",
        "js-yaml": "^4.1.0",
        "jshint": "^2.11.0-rc1",
        "metro-react-native-babel-preset": "^0.56.4",
        "node-apk-parser": "^0.2.3",
        "prettier": "^2.0.5",
        "prettier-eslint": "^9.0.1",
        "react-native-typescript-transformer": "^1.2.13",
        "react-test-renderer": "16.9.0",
        "redux-devtools-extension": "^2.13.8",
        "redux-perf-middleware": "1.2.2",
        "simple-git": "^2.44.0",
        "ts-jest": "^26.3.0",
        "ts-node": "^10.2.0",
        "typescript": "^4.4.4"
    },

我现在的babel.conig.js

module.exports = (api) => {
    api.cache.using(() => process.env.NODE_ENV);

    const presets = ['module:metro-react-native-babel-preset'];
    const plugins = [
        ['dynamic-import-node'],
        [
            'module-resolver',
            {
                root: ['./src'],
                extensions: ['.js', '.ts', '.tsx', '.ios.js', '.android.js'],
                alias: {
                    // when changed here also change in tsconfig.json
                    actions: './src/actions',
                    components: './src/components',
                    constants: './src/constants',
                    images: './src/images',
                    lib: './src/lib',
                    reducers: './src/reducers',
                    sagas: './src/sagas',
                    screens: './src/screens',
                    utils: './src/utils',
                    types: './src/types',
                },
            },
        ],
    ];

    return {
        presets,
        plugins,
    };
};

Answer 1

我们决定冒险一试。将项目从 rn 61.5 升级到 67！只用了 2 天 ;) 希望我们能从那里开始...

react-native "Export statement may only appear at top level" 在清理项目之前工作正常我如何找出问题？

react-native "Export statement may only appear at top level" was working fine until cleaning project how do I find out the issue?

javascript

babeljs

react-native

metro-bundler