预处理数据集出现如下错误

[Sunsoar01]

做预处理数据集时出现如下错误：
E:\Miniconda3\envs\mockingbird\MockingBird-main>python pre.py E:\Miniconda3\envs\mockingbird\MockingBird-main -d aidatatang_200zh -n 1
Ignored unknown kwarg option normalize
Ignored unknown kwarg option normalize
Ignored unknown kwarg option normalize
Ignored unknown kwarg option normalize
Using data from:
E:\Miniconda3\envs\mockingbird\MockingBird-main\aidatatang_200zh\corpus\train
aidatatang_200zh: 0%| | 0/547 [00:00<?, ?speakers/s]Ignored unknown kwarg option normalize
Ignored unknown kwarg option normalize
Ignored unknown kwarg option normalize
Ignored unknown kwarg option normalize
aidatatang_200zh: 100%|████████████████████████████████████████████████████████| 547/547 [01:17<00:00, 7.03speakers/s]
The dataset consists of 0 utterances, 0 mel frames, 0 audio timesteps (0.00 hours).
Traceback (most recent call last):
File "E:\Miniconda3\envs\mockingbird\MockingBird-main\pre.py", line 72, in
preprocess_dataset(**vars(args))
File "E:\Miniconda3\envs\mockingbird\MockingBird-main\models\synthesizer\preprocess.py", line 101, in preprocess_dataset
print("Max input length (text chars): %d" % max(len(m[5]) for m in metadata))
ValueError: max() arg is an empty sequence

请大神们给予帮助！！！