ModuleNotFoundError: No module named 'mmcv._ext'

[BooHwang]

Follow you repo "pip install -r requirements.txt", after that, when I run "python -m third_party.unimatch.eval --config config.yaml --save-path best.pth", I get the error: "ModuleNotFoundError: No module named 'mmcv._ext'", how can I fix it. thx

[visionxyz]

From my experience, it will be better to use a docker image like pytorch/pytorch:1.12.1-cuda11.3-cudnn8-devel