React Native CLI：Android 和 ios 设置问题

Question

当我跑步时npx @react-native-community/cli doctor我收到这个警告。

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Android\n \xe2\x9c\x93 JDK\n \xe2\x9c\x93 Android Studio - Required for building and installing your app on Android\n \xe2\x9c\x96 Android SDK - Required for building and installing your app on Android\n   - Versions found: 29.0.2, 30.0.2, 30.0.3, 31.0.0, 32.0.0\n   - Version supported: .b31.0.0\n \xe2\x9c\x93 ANDROID_HOME\n\niOS\n \xe2\x9c\x93 Xcode - Required for building and installing your app on iOS\n \xe2\x9c\x93 CocoaPods - Required for installing iOS dependencies\n \xe2\x97\x8f ios-deploy - Required for installing your app on a physical device with the CLI\n \xe2\x9c\x96 .xcode.env - File to customize Xcode environment\n

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1) Android SDK:\n如何设置.b31.0.0？

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2） iOS：如何修复.xcode.env错误？

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当我运行npm run android构建成功时。\n但是 npm ~doctor 显示这些错误。

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