ValueError: need at least one array to concatenate

[L6-hong]

@liruihui Hello, I found this problem in the process of running the code. Do you know why? I hope you can give me some suggestions, thank you.

[L6-hong]

@liruihui This is the result of my running command：
checkpoints: log/pointnet_cls/20210114-1318
PARAMETER ...
Namespace(augment=False, batch_size=24, data_dir='ModelNet40_Folder', decay_rate=0.0001, epoch=250, epoch_per_save=5, learning_rate=0.001, learning_rate_a=0.001, log_dir='log/pointnet_cls/20210114-1318', lr_decay=0.5, model_name='pointnet', no_decay=False, noise_dim=1024, num_points=1024, optimizer='Adam', pretrain=None, restore=False, use_normal=False, y_rotated=True)
Load dataset ...
Traceback (most recent call last):
File "train_PA.py", line 22, in
model.train()
File "/floyd/home/Augment/model.py", line 64, in train
trainDataLoader = DataLoader(ModelNetDataLoader(self.opts, partition='train'),
File "/floyd/home/Common/ModelNetDataLoader.py", line 44, in init
self.data, self.label = load_data(opts.data_dir,partition=partition)
File "/floyd/home/Common/ModelNetDataLoader.py", line 26, in load_data
all_data = np.concatenate(all_data, axis=0)
File "<array_function internals>", line 6, in concatenate
ValueError: need at least one array to concatenate

[nickucas123]

Using format h5 datasets

[liruihui]

I think it may be about the dataset path.