CocoaPods installed for the wrong CPU (Apple Silicon)

iOS / Xcode · last reviewed 2026-11-10

The error looks like this

LoadError - dlopen(ffi_c.bundle, 0x0009): tried: (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64'))

Why it happens

CocoaPods / the ffi gem was installed with Intel Ruby or under Rosetta.

How to fix it

Use Homebrew CocoaPods: brew install cocoapods
Or with the project Gemfile: bundle install && bundle exec pod install
Do not run the terminal under Rosetta.

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