Sematic Issue Xcode 13

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Description

Please provide a clear and concise description of what the bug is. Include screenshots if needed. Please test using the latest React Native release to make sure your issue has not already been fixed: https://reactnative.dev/docs/upgrading.html

Created a fresh new project using npx react-native init myproject and opened the myproject.xcworkspace in Xcode 13. While Swift Conversion to Swift 5 I get Semantic Issue in RCT-Folly as follow: Typedef redefinition with different types ('uint8_t' (aka 'unsigned char') vs 'enum clockid_t') inside Time.h file

React Native version:

Run react-native info in your terminal and copy the results here.

System: OS: macOS 12.0 CPU: (8) x64 Intel(R) Core(TM) i5-8257U CPU @ 1.40GHz Memory: 45.39 MB / 8.00 GB Shell: 5.8 - /bin/zsh Binaries: Node: 15.14.0 - ~/.nvm/versions/node/v15.14.0/bin/node Yarn: 1.23.0-20200928.1349 - ~/.yarn/bin/yarn npm: 7.7.6 - ~/.nvm/versions/node/v15.14.0/bin/npm Watchman: 2021.06.07.00 - /usr/local/bin/watchman Managers: CocoaPods: 1.11.2 - /usr/local/bin/pod SDKs: iOS SDK: Platforms: iOS 15.0, DriverKit 20.4, macOS 11.3, tvOS 15.0, watchOS 8.0 Android SDK: API Levels: 28, 29, 30 Build Tools: 28.0.3, 29.0.2, 29.0.3, 30.0.2, 30.0.3 Android NDK: Not Found IDEs: Android Studio: Not Found Xcode: 13.0/13A233 - /usr/bin/xcodebuild Languages: Java: 15.0.1 - /usr/bin/javac npmPackages: @react-native-community/cli: Not Found react: 17.0.2 => 17.0.2 react-native: 0.66.0 => 0.66.0 react-native-macos: Not Found npmGlobalPackages: *react-native*: Not Found

Steps To Reproduce

Provide a detailed list of steps that reproduce the issue.

1. npx react-native init myproject
2. open myproject.xcworkspace in Xcode 13 and start the conversion to Swift 5

Expected Results

Describe what you expected to happen.

Convert the project

Snack, code example, screenshot, or link to a repository:

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[cuttlas]

Ok, so I managed to fix it.

It turns out the M1 post-install workaround doesn’t work for me. Digging into the __apply_Xcode_12_5_M1_post_install_workaround(installer) method, I saw that it runs the command sed -i -e $'s/__IPHONE_10_0/__IPHONE_12_0/' #{installer.sandbox.root}/RCT-Folly/folly/portability/Time.h.
For some unknown reason, my __IPHONE_OS_VERSION_MIN_REQUIRED macro is bigger than 12 even though the deployment target of my project and all the Pods is 11. So changing the above command to sed -i -e $'s/__IPHONE_10_0/__IPHONE_14_0/' #{installer.sandbox.root}/RCT-Folly/folly/portability/Time.h made the error go away.

Now my Podfile looks like this:

require_relative '../node_modules/react-native/scripts/react_native_pods'
require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'

platform :ios, '11.0'

target 'myApp' do
  config = use_native_modules!

  use_react_native!(
    :path => config[:reactNativePath],
    :hermes_enabled => true
  ) 

  target 'myAppTests' do
    inherit! :complete
  end

  use_flipper!()

  post_install do |installer|
    react_native_post_install(installer)
    `sed -i -e  $'s/__IPHONE_10_0/__IPHONE_14_0/' #{installer.sandbox.root}/RCT-Folly/folly/portability/Time.h`
  end
end

I still don’t know why my __IPHONE_OS_VERSION_MIN_REQUIRED is not 11. Does anybody know why XCode may not be using the deployment target of my project? I’m also not sure if the change I made in the workaround may cause additional problems.

[mezod]

I can confirm it’s also happening with: xcode 13.0 macOS 11.5.2 RN 0.66 node 15.9.0