ValueError: didn't find ['jpg', 'png'] in ['__key__', '__url__', 'coco73k.npy']

[minghu0830]

Could you please tell me what caused the following error log?

my bash:
CUDA_VISIBLE_DEVICES=0 python Reconstructions.py
--model_name prior_257_final_subj01_bimixco_softclip_byol
--autoencoder_name autoencoder_subj01_4x_locont_no_reconst
--data_path ./data
--subj 1
--img2img_strength 0
--recons_per_sample 16
--vd_cache_dir ./ckpt_d

log：
device: cuda
subj 1 num_voxels 15724
Traceback (most recent call last):
File "/mnt/sda/huming/fmri2img/fMRI-reconstruction-NSD/src/Reconstructions.py", line 147, in
for val_i, (voxel, img_input, coco) in enumerate(val_dl):
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/torch/utils/data/dataloader.py", line 633, in next
data = self._next_data()
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/torch/utils/data/dataloader.py", line 677, in _next_data
data = self._dataset_fetcher.fetch(index) # may raise StopIteration
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/torch/utils/data/_utils/fetch.py", line 41, in fetch
data = next(self.dataset_iter)
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/webdataset/pipeline.py", line 70, in iterator
yield from self.iterator1()
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/webdataset/filters.py", line 487, in _batched
for sample in data:
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/webdataset/filters.py", line 397, in _to_tuple
for sample in data:
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/webdataset/filters.py", line 343, in _rename
if handler(exn):
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/webdataset/filters.py", line 86, in reraise_exception
raise exn
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/webdataset/filters.py", line 336, in _rename
{
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/webdataset/filters.py", line 337, in
k: getfirst(sample, v, missing_is_error=True)
File "/home/huming/anaconda3/envs/mindeye/lib/python3.10/site-packages/webdataset/filters.py", line 123, in getfirst
raise ValueError(f"didn't find {keys} in {list(a.keys())}")
ValueError: didn't find ['jpg', 'png'] in ['key', 'url', 'coco73k.npy']