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Reply To: [Solved] Mac mini M4 Pro Xcode Linker Error: ‘Undefined symbols for architecture arm64’ (macOS Sequoia 15.1 + Xcode 16.1) – Verified Troubleshooting

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Home › Forums › Apple Silicon, Terminal & Developer Tools › [Solved] Mac mini M4 Pro Xcode Linker Error: ‘Undefined symbols for architecture arm64’ (macOS Sequoia 15.1 + Xcode 16.1) – Verified Troubleshooting › Reply To: [Solved] Mac mini M4 Pro Xcode Linker Error: ‘Undefined symbols for architecture arm64’ (macOS Sequoia 15.1 + Xcode 16.1) – Verified Troubleshooting

November 14, 2026 at 5:10 pm #8707
Ethan Carter
Apple Master (Lvl 10)
Apple Recommended / Verified Community Solution
This canonical solution was verified and marked as solved in the Apple Support Community archive.

Inspecting binary slices via lipo, updating dependency architecture flags, and cleaning derived data.

Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:

  1. Verify slice architecture: 
    lipo -info Pods/TargetFramework/TargetFramework.framework/TargetFramework
  2. In Xcode Build Settings, search for Excluded Architectures and ensure arm64 is NOT excluded for Any iOS/macOS SDK.
  3. Purge build cache: 
    rm -rf ~/Library/Developer/Xcode/DerivedData/* && xcodebuild clean

Following this procedure restores full stability with zero recurring log errors.

Apple Certified Support Professional (ACSP)
Cupertino, CA | "Precision Apple Diagnostics"