search

open-mmlab / mmsegmentation

OpenMMLab Semantic Segmentation Toolbox and Benchmark.
https://mmsegmentation.readthedocs.io/en/main/
Apache License 2.0
7.7k stars 2.53k forks source link

A error report about "ValueError: need at least one array to concatenate" #3576

Closed CHIGIRI19 closed 4 months ago

CHIGIRI19 commented 4 months ago

Thanks for your error report and we appreciate it a lot.

Checklist

  1. I have searched related issues but cannot get the expected help.
  2. The bug has not been fixed in the latest version.

Describe the bug

I have installed the mmsegmentation correctly. And I create my own dataset throught your guidance, and I want to train it by deeplabv3+. But after writing the config ,when I training the dataset, an error occur.

Traceback (most recent call last): File "tools/train.py", line 104, in main() File "tools/train.py", line 100, in main runner.train() File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/runner/runner.py", line 1728, in train self._train_loop = self.build_train_loop( File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/runner/runner.py", line 1520, in build_train_loop loop = LOOPS.build( File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/registry/registry.py", line 570, in build return self.build_func(cfg, args, kwargs, registry=self) File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/registry/build_functions.py", line 121, in build_from_cfg obj = obj_cls(args) # type: ignore File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/runner/loops.py", line 219, in init super().init(runner, dataloader) File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/runner/base_loop.py", line 26, in init self.dataloader = runner.build_dataloader( File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/runner/runner.py", line 1370, in build_dataloader dataset = DATASETS.build(dataset_cfg) File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/registry/registry.py", line 570, in build return self.build_func(cfg, args, kwargs, registry=self) File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/registry/build_functions.py", line 121, in build_from_cfg obj = obj_cls(args) # type: ignore File "/public/home/dukr6/mmsegmentation/mmseg/datasets/yuchang.py", line 18, in init super().init( File "/public/home/dukr6/mmsegmentation/mmseg/datasets/basesegdataset.py", line 142, in init self.full_init() File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/dataset/base_dataset.py", line 307, in full_init self.data_bytes, self.data_address = self._serialize_data() File "/public/home/dukr6/anaconda3/envs/openmmlab/lib/python3.8/site-packages/mmengine/dataset/base_dataset.py", line 768, in _serialize_data data_bytes = np.concatenate(data_list) File "<__array_function__ internals>", line 200, in concatenate ValueError: need at least one array to concatenate

Could you help me solve the issue? I'l appreciate it a lot.

Muscle-king commented 3 months ago

How did you solve it? Can you share it?

svoeff commented 2 months ago

How did you solve it? Can you share it?