FileNotFoundError: Caught FileNotFoundError in DataLoader worker process 0.

[Lixia1221]

Done (t=6.56s) creating index... index created! loading annotations into memory... Done (t=2.49s) creating index... index created! 2021-08-21 15:45:04,520 fcos_core.trainer INFO: Start training Traceback (most recent call last): File "tools/train_net.py", line 180, in main() File "tools/train_net.py", line 173, in main model = train(cfg, args.local_rank, args.distributed) File "tools/train_net.py", line 79, in train arguments, File "/home/fsr/code/FCOS/fcos_core/engine/trainer.py", line 57, in do_train for iteration, (images, targets, _) in enumerate(data_loader, start_iter): File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 517, in next data = self._next_data() File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 1199, in _next_data return self._process_data(data) File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 1225, in _process_data data.reraise() File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/_utils.py", line 429, in reraise raise self.exc_type(msg) FileNotFoundError: Caught FileNotFoundError in DataLoader worker process 0. Original Traceback (most recent call last): File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/utils/data/_utils/worker.py", line 202, in _worker_loop data = fetcher.fetch(index) File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/utils/data/_utils/fetch.py", line 44, in fetch data = [self.dataset[idx] for idx in possibly_batched_index] File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/utils/data/_utils/fetch.py", line 44, in data = [self.dataset[idx] for idx in possibly_batched_index] File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/utils/data/dataset.py", line 219, in getitem return self.datasets[dataset_idx][sample_idx] File "/home/fsr/code/FCOS/fcos_core/data/datasets/coco.py", line 67, in getitem img, anno = super(COCODataset, self).getitem(idx) File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torchvision/datasets/coco.py", line 45, in getitem image = self._load_image(id) File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torchvision/datasets/coco.py", line 38, in _load_image return Image.open(os.path.join(self.root, path)).convert("RGB") File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/PIL/Image.py", line 2968, in open fp = builtins.open(filename, "rb") FileNotFoundError: [Errno 2] No such file or directory: 'datasets/coco/val2014/COCO_val2014_000000202298.jpg'

Killing subprocess 22267 Traceback (most recent call last): File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/runpy.py", line 193, in _run_module_as_main "main", mod_spec) File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/runpy.py", line 85, in _run_code exec(code, run_globals) File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/distributed/launch.py", line 340, in main() File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/distributed/launch.py", line 326, in main sigkill_handler(signal.SIGTERM, None) # not coming back File "/home/laocheng/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/torch/distributed/launch.py", line 301, in sigkill_handler raise subprocess.CalledProcessError(returncode=last_return_code, cmd=cmd) subprocess.CalledProcessError: Command '['/home/laocheng/anaconda3/envs/open-mmlab/bin/python', '-u', 'tools/train_net.py', '--local_rank=0', '--config-file', 'configs/fcos/fcos_imprv_R_50_FPN_1x.yaml', 'DATALOADER.NUM_WORKERS', '2', 'OUTPUT_DIR', 'training_dir/fcos_imprv_R_50_FPN_1x']' returned non-zero exit status 1.

How will I solve it？