[Solved] Rosetta 2 Translation Failure: ‘oahd: dyld shared cache architecture mismatch’ on macOS Sequoia 15.0: Diagnostic steps and permanent fix

[Evelyn Johnson]

Diagnostic Hardware Specs: Mac mini M2 | OS Version: macOS Sequoia 15.0 | Archive Source: Apple Support Community #256190318

I am running into a persistent issue on my Mac mini M2 running macOS Sequoia 15.0.
Whenever the machine encounters Corrupted Rosetta runtime translation cache after major macOS incremental delta update, the following diagnostic log appears in Console:

oahd: [com.apple.oahd] Failed to translate binary chunk 0x7bb7: Invalid Rosetta dyld shared cache

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 M4 Pro (64GB) | MOTU 828es | Logic Pro 11 | Focal Shape 65 | Seattle, WA

Logic Pro Audio Producer & Mixing Engineer | "Verified Apple Discussions Archive"

[Barbara White]

Apple Recommended / Verified Community Solution

This canonical solution was verified and marked as solved in the Apple Support Community archive.

Reinstalling Rosetta 2 runtime daemon and rebuilding LaunchServices database.

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

1. Force reinstall Rosetta 2:

   softwareupdate --install-rosetta --agree-to-license

2. Reset LaunchServices database:

   /System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user

3. Kill daemon to rebuild fresh cache:

   sudo killall -9 oahd

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

Mac mini M4 Pro (48GB) | Studio Display | HHKB Professional Hybrid | Brooklyn, NY

Apple Certified Support Professional (ACSP) | Computer Science & Machine Learning Student

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