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I’m trying to build a React Native iOS project in Xcode (Debug-iphonesimulator) but I keep getting “ScanDependencies” failures before compilation even begins:

ScanDependencies /Users/<username>/Library/Developer/Xcode/DerivedData/mccfrontend-<hash>/Build/Intermediates.noindex/mccfrontend.build/Debug-iphonesimulator/mccfrontend.build/Objects-normal/arm64/main.o /path/to/your/project/ios/mccfrontend/main.m normal arm64 objective-c com.apple.compilers.llvm.clang.1_0.compiler (in target 'mccfrontend' from project 'mccfrontend')
ScanDependencies /Users/<username>/Library/Developer/Xcode/DerivedData/mccfrontend-<hash>/Build/Intermediates.noindex/mccfrontend.build/Debug-iphonesimulator/mccfrontend.build/Objects-normal/arm64/AppDelegate.o /path/to/your/project/ios/mccfrontend/AppDelegate.m normal arm64 objective-c com.apple.compilers.llvm.clang.1_0.compiler (in target 'mccfrontend' from project 'mccfrontend')
Building workspace mccfrontend with scheme mccfrontend and configuration Debug
(3 failures)

Environment

  • Apple silicon: M4
  • macOS: Sequoia 14.x
  • Xcode: 15.4 (15E27)
  • Node.js: v23.10.0
  • npm: 10.9.2
  • Yarn: 1.22.22
  • React Native CLI: 2.0.1
  • react-native: 0.67.1
  • CocoaPods: 1.12.1
  • Ruby: 3.4.3 +PRISM [arm64-darwin24]
  • iOS deployment target: 12.0

What I’ve tried

  1. Product → Clean Build Folder

  2. rm -rf ~/Library/Developer/Xcode/DerivedData/*

  3. pod deintegrate && pod install --repo-update

  4. xcode-select --print-path → reset with sudo xcode-select --switch /Applications/Xcode.app

  5. Upgraded CocoaPods & re-ran pod update

  6. Ensured use_frameworks! :linkage => :static is in Podfile pre_install hook

None of these eliminated the ScanDependencies errors. The same errors occur even in a brand-new React Native template project.

What I’m looking for

Has anyone seen “ScanDependencies … com.apple.compilers.llvm.clang.1_0.compiler” failures in Xcode 15 on Apple silicon?

Are there any known workarounds or bug reports?

Is this related to Apple’s new dependency-scanner or to invalid file references in the workspace?

Any pointers or ideas would be greatly appreciated!

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