Fix macOS install: transformers 4.35.2 incompatible with diffusers 0.33.1#1
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… 0.33.1
The pinned transformers==4.35.2 breaks `import diffusers` on a fresh macOS
install: diffusers 0.33.1's IP-Adapter loader imports `SiglipImageProcessor`,
which only exists in transformers >= 4.45. Result:
cannot import name 'SiglipImageProcessor' from 'transformers'
Bump to transformers==4.49.0, verified end-to-end on Apple Silicon (MPS):
sd-turbo loads, the FastAPI server starts, and realtime img2img runs.
Also add demo/realtime-img2img/start_mac.sh, a launcher that (unlike
run_mac.sh) does not edit main.py in place and supports fully-offline model
loading via HF_HUB_OFFLINE=1.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Problem
On a fresh macOS install following
demo/realtime-img2img/requirements.txt, importing diffusers fails immediately:The pinned
transformers==4.35.2is too old fordiffusers==0.33.1: diffusers' IP-Adapter loader (diffusers/loaders/ip_adapter.py) importsSiglipImageProcessor, which was only added to transformers in 4.45.0. So the demo can't even start on a clean environment.Fix
Bump
transformersto 4.49.0 (lowest tested version withSiglipImageProcessorthat resolves cleanly with the rest of the pinned stack — it pullstokenizers>=0.21).Verified end-to-end on Apple Silicon (M-series, MPS), Python 3.10:
import diffusers/StableDiffusionPipelineimport OKpython main.py --taesd --acceleration none --debugstartsstabilityai/sd-turboloads on MPS,Uvicorn running on http://0.0.0.0:7860/api/settingsresponds — realtime img2img worksAlso included
demo/realtime-img2img/start_mac.sh— a small launcher that, unlikerun_mac.sh, does not editmain.pyin place (thesed -ithere mutates a tracked file on every run) and supports fully-offline model loading viaHF_HUB_OFFLINE=1. Happy to drop this if you'd prefer to keep the PR to the one-line requirements fix.🤖 Generated with Claude Code