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Reply To: [Solved] How to fix Homebrew Command Not Found & PATH Collision on Apple Silicon caused by Shell startup files invoking obsolete Intel /usr/local/bin before native /opt/homebrew/bin on MacBook Air 15″ M3

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Home › Forums › Apple Silicon, Terminal & Developer Tools › [Solved] How to fix Homebrew Command Not Found & PATH Collision on Apple Silicon caused by Shell startup files invoking obsolete Intel /usr/local/bin before native /opt/homebrew/bin on MacBook Air 15″ M3 › Reply To: [Solved] How to fix Homebrew Command Not Found & PATH Collision on Apple Silicon caused by Shell startup files invoking obsolete Intel /usr/local/bin before native /opt/homebrew/bin on MacBook Air 15″ M3

November 15, 2026 at 1:36 am #16701
Julian Krause
Senior Specialist (Lvl 8)
Apple Recommended / Verified Community Solution
This canonical solution was verified and marked as solved in the Apple Support Community archive.

Injecting official Apple Silicon Homebrew environment evaluation into ~/.zprofile.

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

  1. Add native ARM64 prefix to profile: 
    echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zprofile
eval "$(/opt/homebrew/bin/brew shellenv)"
  2. Verify native execution: 
    which brew
file $(which brew) # must output: Mach-O 64-bit executable arm64
  3. Run diagnosis: 
    brew doctor

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

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