Error : raise StopIteration StopIteration

[farhadrahimiinfo]

hi
Thank you for sharing your implementation
please help me .

i run this command
python create_training_data.py --config config/training_config.yaml

created 4 folder for me

• char_pitch.alinger_extralayer_layernorm.Stress_NoBreathing.MelGAN_default
• durations.alinger_extralayer_layernorm.Stress_NoBreathing.MelGAN_default
• mels.MelGAN_default
• pitch.MelGAN_default

and then i run this command

python train_aligner.py --config config/training_config.yaml

but
It gives me the following error.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "train_aligner.py", line 137, in
test_mel, test_phonemes, _, test_fname = valid_dataset.next_batch()
File "/home/TTS/TransformerTTS-main/TransformerTTS-main/data/datasets.py", line 272, in next_batch
return next(self.data_iter)
File "/root/miniconda3/envs/ttsmain/lib/python3.8/site-packages/tensorflow/python/data/ops/iterator_ops.py", line 816, in next
raise StopIteration
StopIteration