Validating Problem

Hello, I am testing the model, but it shows . How can I fix this? Thanks

2021-08-15 16:53:59,781 - INFO - Start validating Traceback (most recent call last): File "tools/train.py", line 47, in <module> main() File "tools/train.py", line 43, in main runner() File "tools/../vedaseg/runners/train_runner.py", line 148, in __call__ res = self._val() File "tools/../vedaseg/runners/train_runner.py", line 111, in _val for idx, (image, mask) in enumerate(self.val_dataloader): File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 345, in __next__ data = self._next_data() File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 838, in _next_data return self._process_data(data) File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 881, in _process_data data.reraise() File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/_utils.py", line 394, in reraise raise self.exc_type(msg) RuntimeError: Caught RuntimeError in DataLoader worker process 1. Original Traceback (most recent call last): File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/utils/data/_utils/worker.py", line 178, in _worker_loop data = fetcher.fetch(index) File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/utils/data/_utils/fetch.py", line 47, in fetch return self.collate_fn(data) File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/utils/data/_utils/collate.py", line 79, in default_collate return [default_collate(samples) for samples in transposed] File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/utils/data/_utils/collate.py", line 79, in <listcomp> return [default_collate(samples) for samples in transposed] File "/root/anaconda3/envs/vedaseg/lib/python3.6/site-packages/torch/utils/data/_utils/collate.py", line 55, in default_collate return torch.stack(batch, 0, out=out) RuntimeError: invalid argument 0: Sizes of tensors must match except in dimension 0. Got 641 and 691 in dimension 2 at /pytorch/aten/src/TH/generic/THTensor.cpp:612