Training error

[DeokyunKim]

Hi, i wanna retrain use coco dataset.

there is error but i dont know how to solve it

Traceback (most recent call last):
  File "train.py", line 81, in <module>
    for batch_i, (_, imgs, targets) in enumerate(dataloader):
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 286, in __next__
    return self._process_next_batch(batch)
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 307, in _process_next_batch
    raise batch.exc_type(batch.exc_msg)
ValueError: Traceback (most recent call last):
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 57, in _worker_loop
    samples = collate_fn([dataset[i] for i in batch_indices])
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 57, in <listcomp>
    samples = collate_fn([dataset[i] for i in batch_indices])
  File "/home/kdy/yolov3/utils/datasets.py", line 71, in __getitem__
    h, w, _ = img.shape
ValueError: not enough values to unpack (expected 3, got 0)

Exception ignored in: <bound method _DataLoaderIter.__del__ of <torch.utils.data.dataloader._DataLoaderIter object at 0x7f19fb602d30>>
Traceback (most recent call last):
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 349, in __del__
    self._shutdown_workers()
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 328, in _shutdown_workers
    self.worker_result_queue.get()
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/multiprocessing/queues.py", line 337, in get
    return _ForkingPickler.loads(res)
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/site-packages/torch/multiprocessing/reductions.py", line 70, in rebuild_storage_fd
    fd = df.detach()
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/multiprocessing/resource_sharer.py", line 57, in detach
    with _resource_sharer.get_connection(self._id) as conn:
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/multiprocessing/resource_sharer.py", line 87, in get_connection
    c = Client(address, authkey=process.current_process().authkey)
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/multiprocessing/connection.py", line 487, in Client
    c = SocketClient(address)
  File "/home/kdy/anaconda3/envs/pytorch/lib/python3.6/multiprocessing/connection.py", line 614, in SocketClient
    s.connect(address)
ConnectionRefusedError: [Errno 111] Connection refused

[DeokyunKim]

[SOLVED]
Some files of COCO dataset was broken. file # is 000000167126.
Thanks

[DeokyunKim]

Refer this link
karpathy/neuraltalk2#4