` Traceback (most recent call last):



 "<ipython-input-1-9cb4570fbaa9>", line 18, in <module>

show([(mesh, pl), (slice_2D, txt)], N=2, sharecam=False, axes=True)



 "D:\Applications\Anaconda3\lib\site-packages\vtkplotter\plotter.py", line 292, in show

vp.interactor.Start()

AttributeError: 'NoneType' object has no attribute 'Start'`

Traceback (most recent call last):


 "tools/train.py", line 161, in <module>

main()


 "tools/train.py", line 157, in main

meta=meta)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\mmseg\apis\train.py", line 106, in train_segmentor

runner.run(data_loaders, cfg.workflow, cfg.total_iters)


 "c:\users\10295\mmcv\mmcv\runner\iter_based_runner.py", line 119, in run

iter_runner(iter_loaders[i], **kwargs)


 "c:\users\10295\mmcv\mmcv\runner\iter_based_runner.py", line 55, in train

outputs = self.model.train_step(data_batch, self.optimizer, **kwargs)


 "c:\users\10295\mmcv\mmcv\parallel\data_parallel.py", line 67, in train_step

return self.module.train_step(*inputs[0], **kwargs[0])


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\mmseg\models\segmentors\base.py", line 149, in train_step

losses = self.forward_train(**data_batch, **kwargs)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\mmseg\models\segmentors\encoder_decoder.py", line 152, in forward_train

x = self.extract_feat(img)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\mmseg\models\segmentors\encoder_decoder.py", line 78, in extract_feat

x = self.backbone(img)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\torch\nn\modules\module.py", line 722, in _call_impl

result = self.forward(*input, **kwargs)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\mmseg\models\backbones\resnet.py", line 635, in forward

x = self.stem(x)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\torch\nn\modules\module.py", line 722, in _call_impl

result = self.forward(*input, **kwargs)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\torch\nn\modules\container.py", line 117, in forward

input = module(input)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\torch\nn\modules\module.py", line 722, in _call_impl

result = self.forward(*input, **kwargs)


 "E:\ProgramData\Anaconda3\envs\open-mmlab\lib\site-packages\torch\nn\modules\batchnorm.py", line 490, in forward

process_group = torch.distributed.group.WORLD
AttributeError: module 'torch.distributed' has no attribute 'group'