我正在尝试在iPhone上启动react-native应用程序。现在我正在使用命令 pod install 安装 pod，但它会抛出错误：
CocoaPods 找不到 pod“React/Core”的兼容版本：
在 Podfile 中： React-native-fetch-blob（来自）已解析为 0.10.6， 这取决于 反应/核心../node_modules/react-native-fetch-blob您的规范源都不包含满足依赖关系的规范：
。React/Core您有以下任一情况： * 输错了名称或版本。 * 未添加 将 Podspec 托管到您的 Podfile 的源存储库。
Pod 更新没有帮助。 更新了一些依赖项 这是我的 package.json
"dependencies": {
"@react-native-community/art": "^1.2.0",
"@react-native-community/async-storage": "^1.9.0",
"@react-native-community/cli-platform-android": "^4.13.0",
"@react-native-community/cli-platform-ios": "^4.13.0",
"@react-native-community/datetimepicker": "^2.4.3",
"@react-native-community/geolocation": "^2.0.2",
"@react-native-community/netinfo": "^5.7.0",
"@react-native-community/picker": "^1.6.6",
"@react-native-community/toolbar-android": "^0.1.0-rc.2",
"@react-native-firebase/analytics": "10.1.1",
"@react-native-firebase/app": "10.1.0",
"@react-native-firebase/crashlytics": "10.1.1",
"@twotalltotems/react-native-otp-input": "^1.0.23",
"adm-zip": "^0.4.13",
"apisauce": "^1.1.1",
"base-64": "^0.1.0",
"geolib": "^3.3.1",
"instabug-reactnative": "^9.1.1",
"jail-monkey": "^2.3.3",
"jetifier": "^1.6.6",
"lodash.debounce": "^4.0.8",
"lottie-react-native": "^3.3.2",
"moment": "^2.24.0",
"moment-timezone": "^0.5.25",
"plist": "^3.0.1",
"prop-types": "^15.7.2",
"ramda": "^0.26.1",
"react": "16.9.0",
"react-native": "0.63.2",
"react-native-background-fetch": "^3.1.0",
"react-native-background-geolocation": "^3.9.1",
"react-native-blur-overlay": "^1.0.7",
"react-native-dash": "^0.0.11",
"react-native-device-info": "^5.6.1",
"react-native-easy-toast": "^1.2.0",
"react-native-elements": "^2.0.0",
"react-native-exit-app": "^1.1.0",
"react-native-extended-stylesheet": "^0.11.1",
"react-native-fbsdk": "^2.0.0",
"react-native-fetch-blob": "^0.10.8",
"react-native-flexi-radio-button": "^0.2.2",
"react-native-gesture-handler": "^1.6.1",
"react-native-get-music-files": "https://github.com/cinder92/react-native-get-music-files.git",
"react-native-get-random-values": "^1.3.1",
"react-native-google-signin": "^1.2.2",
"react-native-i18n": "^2.0.15",
"react-native-image-picker": "^2.3.1",
"react-native-indicators": "^0.17.0",
"react-native-ionicons": "^4.x",
"react-native-keyboard-aware-scroll-view": "^0.9.1",
"react-native-localize": "^1.4.2",
"react-native-maps": "^0.27.1",
"react-native-modal": "^11.5.6",
"react-native-modal-datetime-picker": "^8.9.3",
"react-native-navigation": "^6.7.5",
"react-native-parallax-scroll-view": "^0.21.3",
"react-native-picker-select": "^7.0.0",
"react-native-progress": "^4.1.2",
"react-native-raw-bottom-sheet": "^2.0.2",
"react-native-reanimated": "^1.9.0",
"react-native-render-html": "^4.1.2",
"react-native-root-toast": "^3.2.0",
"react-native-send-intent": "^1.0.30",
"react-native-slider": "^0.11.0",
"react-native-snap-carousel": "^3.8.4",
"react-native-ssl-pinning": "^1.5.1",
"react-native-status-bar-height": "^2.3.1",
"react-native-swift": "^1.2.2",
"react-native-switch-pro": "^1.0.4",
"react-native-tab-view": "^2.14.4",
"react-native-timer-mixin": "^0.11.0",
"react-native-track-player": "1.2.3",
"react-native-vector-icons": "^6.7.0",
"react-native-view-shot": "^3.1.2",
"react-native-webview": "^10.10.0",
"react-redux": "^7.2.0",
"redux": "^4.0.5",
"redux-actions": "^2.6.5",
"redux-persist": "^6.0.0",
"redux-saga": "^1.1.3",
"redux-thunk": "^2.3.0",
"rn-apple-healthkit": "^0.8.0",
"rxjs-compat": "^6.5.5",
"validate.js": "^0.13.1",
"xcode": "^3.0.1"
},
"devDependencies": {
"@babel/core": "^7.9.0",
"@babel/runtime": "^7.9.2",
"@react-native-community/eslint-config": "^1.0.0",
"@types/react-native": "^0.62.2",
"babel-core": "7.0.0-bridge.0",
"babel-eslint": "^10.0.1",
"babel-jest": "^25.3.0",
"babel-plugin-module-resolver": "^3.2.0",
"eslint": "^6.8.0",
"eslint-config-prettier": "^6.0.0",
"eslint-config-react-app": "^4.0.1",
"eslint-config-react-native-prettier": "^1.0.1",
"eslint-plugin-prettier": "^3.1.0",
"eslint-plugin-react": "^7.14.3",
"eslint-plugin-react-native": "^3.7.0",
"jest": "^25.3.0",
"metro": "^0.64.0",
"metro-config": "^0.64.0",
"metro-core": "^0.57.0",
"metro-react-native-babel-preset": "^0.64.0",
"numeral": "^2.0.6",
"prettier": "^1.18.2",
"react-test-renderer": "16.9.0",
"reactotron-apisauce": "^3.0.0",
"reactotron-react-native": "^3.6.4",
"reactotron-redux": "^3.1.1",
"reactotron-redux-saga": "^4.2.2",
"stylelint": "^10.0.0"
},
"jest": {
"preset": "react-native"
},
"rnpm": {
"assets": [
"./assets/fonts/"
]
},
"isSwift": true
}
我以前遇到过这个问题，结果发现应用程序的依赖项之一（react-native-fetch-blob）在其 PodSpec 中使用了 React/Core 而不是 React-Core 我将最后一行
s.dependency 'React/Core's.dependency 'React-Core'pod'React-Core',:path =>'../node_modules/react-native/'Podfile解决方案：
1。找到 Podspec 文件： 导航到node_modules目录中的react-native-fetch-blob模块并找到react-native-fetch-blob.podspec文件。路径应该类似于node_modules/react-native-fetch-blob/react-native-fetch-blob.podspec。
2。打开 Podspec 文件： 在您选择的文本编辑器中打开react-native-fetch-blob.podspec 文件。
3.找到依赖部分： 在 podspec 文件中查找列出依赖项的部分。此部分通常包含以 s.dependency 开头的行。
4。更改依赖行： 找到提到对 React/Core 的依赖的行。它可能看起来像这样：
s.dependency 'React/Core'
更改为：
s.dependency 'React-Core'
5。保存更改： 保存对 podspec 文件所做的更改。
6。运行 pod install： 进行更改后，在终端中导航到 React Native 项目的 ios 目录并运行：
pod install
这将使用修改后的 podspec 文件重新安装 iOS 依赖项，包括react-native-fetch-blob。