R disabled due to incompatible architecture on Mac M2

[Michael Troup]

I installed R on my MacBook pro (M2) with the appropriate arm R pkg file.

When I install GoldenCheetah & configure for R, it says that R is recognised but that it cannot load libraries due to incompatible architecture : "Cannot load library /Library/Frameworks/R.framework/Resources/lib/libR.dylib: (dlopen(/Library/Frameworks/R.framework/Resources/lib/libR.dylib, 0x0005): tried: '/Library/Frameworks/R.framework/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')),..."

Does anyone have any ideas on how I could rectify this?

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message loading GC with R library specified:

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Cannot load library /Library/Frameworks/R.framework/Resources/lib/libR.dylib: (dlopen(/Library/Frameworks/R.framework/Resources/lib/libR.dylib, 0x0005): tried: '/Library/Frameworks/R.framework/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')), '/System/Volumes/Preboot/Cryptexes/OS/Library/Frameworks/R.framework/Resources/lib/libR.dylib' (no such file), '/Library/Frameworks/R.framework/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')), '/Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')), '/System/Volumes/Preboot/Cryptexes/OS/Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libR.dylib' (no such file), '/Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')))
The dynamic library load failed.

R has now been disabled in options.

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R version

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(installed from R-4.5.1-arm64.pkg)

R version 4.5.1 (2025-06-13) -- "Great Square Root"
Copyright (C) 2025 The R Foundation for Statistical Computing
Platform: aarch64-apple-darwin20

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Mac details

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MacBook Pro 16 inch 2023
Apple M2 Pro
16GB
macOS Sequoia 15.1.1

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GC details

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v3.7 build 5005

[Ale Martinez]

El lunes, 7 de julio de 2025 a la(s) 4:35:20 a.m. UTC-3, mick....@gmail.com escribió:

I installed R on my MacBook pro (M2) with the appropriate arm R pkg file.

When I install GoldenCheetah & configure for R, it says that R is recognised but that it cannot load libraries due to incompatible architecture : "Cannot load library /Library/Frameworks/R.framework/Resources/lib/libR.dylib: (dlopen(/Library/Frameworks/R.framework/Resources/lib/libR.dylib, 0x0005): tried: '/Library/Frameworks/R.framework/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')),..."

Does anyone have any ideas on how I could rectify this?

macOS doesn’t support mixed libraries, so you have two options:

1) install the x86_64 package of R to use with GoldenCheetah

2) build GoldenCheetah from source to have an ARM binary

The first option is easier, the second has better performance.

[Michael Troup]

Thanks 👍

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