React Native ios build-修改节点模块包中的文件

在ios生成属于node_模块包的文件时，我遇到以下错误：

绑定失败：语法错误： /Users/user148634/Desktop/mobile ui/PriceInsight_app/node_modules/react native/node_modules/react native/Libraries/Components/Switch/Switch.js： 不支持实验语法“nullishCoalescingOperator” 当前启用（167:52）：

根据此消息，文件位于以下路径中：

node_modules/react-native/node_modules/react-native/Libraries/Components/Switch/Switch.js

node_modules/react-native/Libraries/Components/Switch/Switch.js

但是，我可以在以下路径中看到该文件：

node_modules/react-native/node_modules/react-native/Libraries/Components/Switch/Switch.js

node_modules/react-native/Libraries/Components/Switch/Switch.js

（文件夹

node\u modules/react native/node\u modules/react native

不存在）

我试图修改

node\u modules/react native/Libraries/Components/Switch/Switch.js

，但没有任何效果，并且在构建过程中出现了相同的错误

知道为什么会显示不存在的路径吗？知道我如何修改文件以使其影响构建吗？

这是我的package.json文件：

{
  "name": "newapp",
  "version": "0.0.2",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest --verbose --coverage",
    "test:update": "jest --verbose --coverage --updateSnapshot",
    "test:watch": "jest --verbose --watch",
    "coverage": "jest --verbose --coverage && xdg-open ./coverage/lcov-report/index.html",
    "lint": "npx eslint --fix ./src/*"
  },
  "dependencies": {
    "adm-zip": "^0.4.13",
    "apollo-boost": "0.1.17",
    "axios": "^0.18.0",
    "babel": "^6.23.0",
    "buffer": "5.1.0",
    "cross-fetch": "^3.0.0",
    "enzyme": "^3.3.0",
    "fastfall": "^1.5.1",
    "got": "^9.5.1",
    "graphql": "0.13.2",
    "graphql-tag": "2.10.0",
    "jasmine-react-helpers": "^0.2.2",
    "link": "^0.1.5",
    "lodash": "4.17.5",
    "moment": "2.21.0",
    "plist": "^3.0.1",
    "query-string": "^6.1.0",
    "react": "16.2.0",
    "react-addons-test-utils": "^15.6.2",
    "react-apollo": "2.2.4",
    "react-dom": "^16.7.0",
    "react-native": "^0.57.0",
    "react-native-elements": "0.19.0",
    "react-native-fabric": "^0.5.2",
    "react-native-fbsdk": "^0.6.3",
    "react-native-htmlview": "^0.12.1",
    "react-native-link-preview": "^1.3.5",
    "react-native-login": "^0.0.1-alpha.2",
    "react-native-login-keycloak": "^1.0.2",
    "react-native-onesignal": "3.2.6",
    "react-native-push-notification": "https://github.com/Dhanraj-bidchat/react-native-push-notification.git",
    "react-native-sleek-loading-indicator": "^0.1.3",
    "react-native-spinkit": "^1.1.1",
    "react-native-svg": "6.2.2",
    "react-native-swipe-cards": "^0.1.1",
    "react-native-swiper": "1.5.13",
    "react-native-vector-icons": "4.5.0",
    "react-navigation": "1.5.6",
    "react-redux": "5.0.7",
    "redux": "^3.7.2",
    "redux-logger": "^3.0.6",
    "redux-persist": "5.9.1",
    "redux-thunk": "^2.2.0",
    "victory-native": "0.17.2",
    "whatwg-fetch": "2.0.4",
    "xcode": "^1.1.0"
  },
  "devDependencies": {
    "@babel/plugin-proposal-optional-chaining": "^7.2.0",
    "babel-eslint": "^8.2.3",
    "babel-jest": "^22.4.4",
    "babel-plugin-dynamic-import-node": "^1.2.0",
    "babel-plugin-syntax-dynamic-import": "^6.18.0",
    "babel-plugin-transform-class-properties": "^6.24.1",
    "babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
    "babel-preset-env": "^1.7.0",
    "babel-preset-react-native": "5.0.0",
    "enzyme-adapter-react-16": "^1.1.1",
    "enzyme-to-json": "^3.3.4",
    "eslint": "^4.19.1",
    "eslint-config-standard": "^11.0.0",
    "eslint-plugin-import": "^2.12.0",
    "eslint-plugin-jest": "^21.17.0",
    "eslint-plugin-node": "^6.0.1",
    "eslint-plugin-only-warn": "^1.0.1",
    "eslint-plugin-promise": "^3.8.0",
    "eslint-plugin-react": "^7.9.1",
    "eslint-plugin-standard": "^3.1.0",
    "jest": "^23.5.0",
    "jest-resolve": "^23.0.0",
    "jest-serializer-enzyme": "^1.0.0",
    "react-native-mock-render": "^0.0.26",
    "react-test-renderer": "^16.3.2",
    "redux-mock-store": "^1.5.1",
    "sinon": "^5.0.10"
  },
  "jest": {
    "preset": "react-native",
    "setupFiles": [
      "./jest-setup.js"
    ],
    "snapshotSerializers": [
      "enzyme-to-json/serializer"
    ],
    "modulePaths": [
      "<rootDir>/src",
      "<rootDir>/node_modules"
    ],
    "transform": {
      "^.+\\.js$": "babel-jest",
      "^.+\\.jsx?$": "babel-jest"
    },
    "transformIgnorePatterns": [
      "node_modules/(?!(react-native-safe-area-view|react-navigation|react-native-htmlview|react-native-fabric|react-native-login|react-native-elements|react-native-vector-icons|react-native-spinkit|victory-pie|victory-chart|victory-core|react-native-svg|react-native|redux-persist|victory-native|react-native-swipe-cards|react-native-swiper)/)"
    ],
    "moduleNameMapper": {
      "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/assetsTransformer.js",
      "\\.(css|less)$": "<rootDir>/assetsTransformer.js"
    }
  }
}

{
“名称”：“新应用程序”，
“版本”：“0.0.2”，
“私人”：没错，
“脚本”：{
“开始”：“node node_modules/react native/local cli/cli.js start”，
“test”：“jest--verbose--coverage”，
“test:update”：“jest--verbose--coverage--updateSnapshot”，
“test:watch”：“jest--verbose--watch”，
“coverage”：“jest--verbose--coverage&&xdg open./coverage/lcov report/index.html”，
“lint”：“npx eslint--fix./src/*”
},
“依赖项”：{
“adm-zip”：“^0.4.13”，
“阿波罗助推”：“0.1.17”，
“axios”：“^0.18.0”，
“巴别塔”：“^6.23.0”，
“缓冲区”：“5.1.0”，
“交叉提取”：“^3.0.0”，
“酶”：“^3.3.0”，
“fastfall”：“^1.5.1”，
“got”：“^9.5.1”，
“graphql”：“0.13.2”，
“graphql标签”：“2.10.0”，
“茉莉反应助手”：“^0.2.2”，
“链接”：“^0.1.5”，
“lodash”：“4.17.5”，
“时刻”：“2.21.0”，
“plist”：“^3.0.1”，
“查询字符串”：“^6.1.0”，
“反应”：“16.2.0”，
“react加载项测试实用程序”：“^15.6.2”，
“阿波罗反应”：“2.2.4”，
“react dom”：“^16.7.0”，
“本机反应”：“^0.57.0”，
“反应本机元素”：“0.19.0”，
“react原生结构”：“^0.5.2”，
“react native fbsdk”：“^0.6.3”，
“react native htmlview”：“^0.12.1”，
“反应本机链接预览”：“^1.3.5”，
“反应本机登录”：“^0.0.1-alpha.2”，
“react本机登录密钥斗篷”：“^1.0.2”，
“react native onesignal”：“3.2.6”，
“响应本机推送通知”：https://github.com/Dhanraj-bidchat/react-native-push-notification.git",
“react native sleek loading indicator”：“^0.1.3”，
“react native spinkit”：“^1.1.1”，
“react native svg”：“6.2.2”，
“react本机刷卡”：“^0.1.1”，
“react native swiper”：“1.5.13”，
“反应本机矢量图标”：“4.5.0”，
“反应导航”：“1.5.6”，
“react redux”：“5.0.7”，
“redux”：“^3.7.2”，
“redux记录器”：“^3.0.6”，
“redux持久化”：“5.9.1”，
“redux thunk”：“^2.2.0”，
“胜利土著”：“0.17.2”，
“whatwg fetch”：“2.0.4”，
“xcode”：“^1.1.0”
},
“依赖性”：{
“@babel/插件方案可选链接”：“^7.2.0”，
“babel eslint”：“^8.2.3”，
“巴别塔笑话”：“^22.4.4”，
“babel插件动态导入节点”：“^1.2.0”，
“babel插件语法动态导入”：“^6.18.0”，
“babel插件转换类属性”：“^6.24.1”，
“babel-plugin-transform-es2015-modules-commonjs”：“^6.26.2”，
“巴别塔预设环境”：“^1.7.0”，
“巴别塔预设反应本机”：“5.0.0”，
“酶-适配器-反应-16”：“^1.1.1”，
“酶到json”：“^3.3.4”，
“eslint”：“^4.19.1”，
“eslint配置标准”：“^11.0.0”，
“eslint插件导入”：“^2.12.0”，
“eslint插件笑话”：“^21.17.0”，
“eslint插件节点”：“^6.0.1”，
“仅eslint插件警告”：“^1.0.1”，
“eslint插件承诺”：“^3.8.0”，
“eslint插件反应”：“^7.9.1”，
“eslint插件标准”：“^3.1.0”，
“玩笑”：“^23.5.0”，
“玩笑解决”：“^23.0.0”，
“jest序列化程序”：“^1.0.0”，
“反应本机模拟渲染”：“^0.0.26”，
“反应测试渲染器”：“^16.3.2”，
“redux模拟商店”：“^1.5.1”，
“sinon”：“^5.0.10”
},
“笑话”：{
“预设”：“反应本机”，
“设置文件”：[
“/jest setup.js”
],
“快照序列化程序”：[
“酶到json/序列化程序”
],
“模块路径”：[
“/src”，
“/node\u模块”
],
“转变”：{
“^.+\\.js$”：“巴别塔玩笑”，
“^.+\\.jsx？$”：“巴别塔笑话”
},
“transformIgnorePatterns”：[
“节点|模块/（？！（反应本机安全区域视图|反应导航|反应本机htmlview |反应本机结构|反应本机登录|反应本机元素|反应本机向量图标|反应本机spinkit |胜利派|胜利图|胜利核心|反应本机svg |反应本机|重排持久|胜利本机|反应本机|反应本机刷卡|反应本机刷卡）/）”
],
“moduleNameMapper”：{
“\ \（jpg | jpeg | png | gif | eot | otf | webp | svg | ttf | woff | woff2 | mp4 | webm | wav | mp3 | m4a | aac | oga）$”：“/assettransformer.js，
“\\（css |减去）$”：“/assetsTransformer.js”
}
}
}

将LRC更改为

{
 "presets": ["module:metro-react-native-babel-preset"]
}

---

添加你的

package.json

你说你得到了一个错误；具体的错误消息是什么？@HeisenBrgadded@JohnEllmore补充