codex - 💡(How to fix) Fix Codex 2.app is arm64-only and cannot launch on Intel macOS

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Error Message

The application cannot be opened for an unexpected reason, error=Error Domain=NSOSStatusErrorDomain Code=-10661

Code Example

$ file /Applications/Codex.app/Contents/MacOS/Codex
/Applications/Codex.app/Contents/MacOS/Codex: Mach-O 64-bit executable x86_64

$ file /Applications/Codex\ 2.app/Contents/MacOS/Codex
/Applications/Codex 2.app/Contents/MacOS/Codex: Mach-O 64-bit executable arm64

$ lipo -archs /Applications/Codex.app/Contents/MacOS/Codex
x86_64

$ lipo -archs /Applications/Codex\ 2.app/Contents/MacOS/Codex
arm64

$ defaults read /Applications/Codex\ 2.app/Contents/Info CFBundleShortVersionString
26.513.31313

$ defaults read /Applications/Codex\ 2.app/Contents/Info CFBundleVersion
2867

$ defaults read /Applications/Codex\ 2.app/Contents/Info LSMinimumSystemVersion
12.0

$ open -n /Applications/Codex\ 2.app
The application cannot be opened for an unexpected reason, error=Error Domain=NSOSStatusErrorDomain Code=-10661
RAW_BUFFERClick to expand / collapse

What version of the Codex App are you using?

26.513.31313, build 2867

Platform

  • macOS: 12.7.4 (21H1123)
  • Architecture: x86_64 / Intel Mac
  • UI locale: zh-CN

Issue

Codex 2.app appears as an unsupported application in Finder on this Intel Mac and cannot be launched. The same machine has Codex.app installed and that bundle is x86_64, but Codex 2.app is arm64-only.

Local verification

$ file /Applications/Codex.app/Contents/MacOS/Codex
/Applications/Codex.app/Contents/MacOS/Codex: Mach-O 64-bit executable x86_64

$ file /Applications/Codex\ 2.app/Contents/MacOS/Codex
/Applications/Codex 2.app/Contents/MacOS/Codex: Mach-O 64-bit executable arm64

$ lipo -archs /Applications/Codex.app/Contents/MacOS/Codex
x86_64

$ lipo -archs /Applications/Codex\ 2.app/Contents/MacOS/Codex
arm64

$ defaults read /Applications/Codex\ 2.app/Contents/Info CFBundleShortVersionString
26.513.31313

$ defaults read /Applications/Codex\ 2.app/Contents/Info CFBundleVersion
2867

$ defaults read /Applications/Codex\ 2.app/Contents/Info LSMinimumSystemVersion
12.0

$ open -n /Applications/Codex\ 2.app
The application cannot be opened for an unexpected reason, error=Error Domain=NSOSStatusErrorDomain Code=-10661

spctl --assess --type execute --verbose=4 /Applications/Codex\ 2.app reports the app is accepted and notarized, so this does not look like Gatekeeper. It appears to be an architecture compatibility issue.

Expected behavior

The installer/download flow should either provide an x86_64/universal Codex 2 build for Intel Macs, or clearly prevent installing/showing an Apple Silicon-only app on Intel machines.

Related context

This was found while investigating Intel-specific Codex Desktop rendering issues on the Plugins and Settings pages. The currently launchable Codex.app is x86_64, while Codex 2.app cannot be used on the same machine.

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FAQ

Expected behavior

The installer/download flow should either provide an x86_64/universal Codex 2 build for Intel Macs, or clearly prevent installing/showing an Apple Silicon-only app on Intel machines.

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codex - 💡(How to fix) Fix Codex 2.app is arm64-only and cannot launch on Intel macOS