VlSomers
commented
10 months ago Hi, the error occurred probably because the dataloader was empty. It probably happened because there was an issue loading the dataset on disk. Can you check inside "torchreid/data/datasets/image/market1501.py", at the end of the "init" function, that the three lists {train, query, gallery} and not empty? Seeing your error, I believe one of the three list is likely empty (you then need to check that your dataset is at the proper location)
Hey I got this error after executing this command: !python /content/bpbreid/torchreid/scripts/main.py --config-file configs/bpbreid/bpbreid_market1501_train.yaml This error is displayed after the completion of train steps: Traceback (most recent call last): File "/content/bpbreid/torchreid/scripts/main.py", line 274, in
main()
File "/content/bpbreid/torchreid/scripts/main.py", line 183, in main
engine.run(*engine_run_kwargs(cfg))
File "/content/bpbreid/torchreid/engine/engine.py", line 245, in run
evalate_on_sources_only=False
File "/content/bpbreid/torchreid/engine/engine.py", line 349, in test
save_features=save_features
File "/usr/local/lib/python3.7/site-packages/torch/autograd/grad_mode.py", line 27, in decorate_context
return func(args, **kwargs)
File "/content/bpbreid/torchreid/engine/image/part_based_engine.py", line 188, in _evaluate
qf, q_pids, q_camids, qf_parts_visibility, q_parts_masks, q_pxlscores, q_anns = self._feature_extraction(query_loader)
File "/content/bpbreid/torchreid/engine/image/part_based_engine.py", line 159, in _feature_extraction
partsvisibility = torch.cat(partsvisibility, 0)
RuntimeError: torch.cat(): expected a non-empty list of Tensors
This is the dataset path: /root/datasets/reid/Market-1501-v15.09.15