UnboundLocalError: local variable 'dimensions_dis' referenced before assignment

[lunar333]

Traceback (most recent call last):
File "/disk2/zhh/EmotionalConversionStarGAN-master/run_preprocessing.py", line 214, in
run_preprocessing(args)
File "/disk2/zhh/EmotionalConversionStarGAN-master/run_preprocessing.py", line 199, in run_preprocessing
generate_world_features(audio_filenames, data_dir)
File "/disk2/zhh/EmotionalConversionStarGAN-master/run_preprocessing.py", line 87, in generate_world_features
wav, labels = get_wav_and_labels(f, data_dir)
File "/disk2/zhh/EmotionalConversionStarGAN-master/utils/data_preprocessing_utils.py", line 111, in get_wav_and_labels
labels = concatenate_labels(category, speaker, dimensions, dimensions_dis)
UnboundLocalError: local variable 'dimensions_dis' referenced before assignment

how to solve this problem?