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[Solved] Mac mini M4 Pro encountering Xcode Linker Error: ‘Undefined symbols for architecture arm64’ after update (macOS Sequoia 15.1 + Xcode 16.1)

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

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  • November 14, 2026 at 8:51 pm #12110
    Victoria Flores
    Community Contributor
    Diagnostic Hardware Specs: Mac mini M4 Pro (48GB) | OS Version: macOS Sequoia 15.1 + Xcode 16.1 | Archive Source: Apple Support Community #256387479

    I am running into a persistent issue on my Mac mini M4 Pro (48GB) running macOS Sequoia 15.1 + Xcode 16.1.
    Whenever the machine encounters Missing universal arm64 binary slice in legacy CocoaPods or precompiled dylib frameworks, the following diagnostic log appears in Console:

    ld: symbol(s) not found for architecture arm64; clang: error: linker command failed with exit code 1 (use -v to see invocation)

    I verified that hardware connections are intact and tested across different power sources. What is the verified diagnostic procedure to permanently eliminate this symptom?

    Mac mini M2 Pro (32GB) | Dell UltraSharp U3223QE | Jamf Cloud Admin | Portland, OR
    Enterprise Mac Sysadmin & Jamf Pro Architect | "Verified Apple Discussions Archive"
    November 14, 2026 at 8:51 pm #12111
    Christina Lehmann
    Community Contributor
    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.

    Mac Pro M2 Ultra | Dual Pro Display XDR | Blackmagic UltraStudio 4K Mini | Rotterdam, NL
    Apple Certified Support Professional (ACSP) | Final Cut Pro / DaVinci Colorist & Editor
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