(mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e'))

Question

Followed this guide (Cannot pip install mediapipe on Macos M1) to install Mediapipe on M1 mac, and now I am unable to use pandas or numpy.

ImportError: dlopen(/Users/matthewcuevas/Library/Python/3.8/lib/python/site-packages/pandas/_libs/interval.cpython-38-darwin.so, 0x0002): tried: '/Users/matthewcuevas/Library/Python/3.8/lib/python/site-packages/pandas/_libs/interval.cpython-38-darwin.so' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64'))

Answer 1

pandas and numpy seem to have been installed using the wrong architecture. You can fix that by uninstalling current versions and installing them with the architecture your machine runs on (M1, or arm64, in this case).

python -m pip uninstall pandas numpy

Now, install their arm64 equivalents. To make sure you're not using the cashed versions (x86_64) that were used before, you can add the --no-cache flag to download the arm64 versions.

arch -arm64 python -m pip install numpy pandas --no-cache

Answer 2

I got an error like this too. Solved it after a lot of trial & error.

The Problem: my brew was still running on Rosetta. Fixed that by uninstalling, cleaning and reinstalling. So everything seemed to run fine. Except this problem still kept cropping up

Until I discovered that pip is quite agressive in caching. So it caches the build even if the architecture changed. Solution: pip cache purge. Or remove the whole cache directory which you find with pip cache info