A weird bug

[ljx761795750]

Thanks for the work, I ran into a weird bug when reproducing，
What am I doing wrong?

Traceback (most recent call last):
File "C:\Users\Li\PycharmProjects\pythonProject4\MTTR\main.py", line 78, in
run(process_id=0, args=args)
File "C:\Users\Li\PycharmProjects\pythonProject4\MTTR\main.py", line 18, in run
trainer = Trainer(config, process_id, device_id=args.device_ids[process_id], num_processes=args.num_devices)
File "C:\Users\Li\PycharmProjects\pythonProject4\MTTR\trainer.py", line 76, in init
self.data_loader_train = DataLoader(dataset_train, batch_size=config.batch_size, sampler=self.sampler_train,
File "C:\Users\Li.conda\envs\mttr\lib\site-packages\torch\utils\data\dataloader.py", line 277, in init
sampler = RandomSampler(dataset, generator=generator) # type: ignore[arg-type]
File "C:\Users\Li.conda\envs\mttr\lib\site-packages\torch\utils\data\sampler.py", line 97, in init
raise ValueError("num_samples should be a positive integer "
ValueError: num_samples should be a positive integer value, but got num_samples=0