Error in train_mask_detector.py

[winnk23]

Hi @akashkam559 ,
I have meet an error wile running the module1 (train_mask_detector.py). The error is:

[INFO] loading images...
Traceback (most recent call last):
File "E:\New folder\Covid19-Face-Mask-Detector-master\train_mask_detector.py", line 71, in
labels = lb.fit_transform(labels)
File "C:\Users\MY HP\AppData\Roaming\Python\Python39\site-packages\sklearn\preprocessing_label.py", line 325, in fit_transform
return self.fit(y).transform(y)
File "C:\Users\MY HP\AppData\Roaming\Python\Python39\site-packages\sklearn\preprocessing_label.py", line 299, in fit
raise ValueError("y has 0 samples: %r" % y)
ValueError: y has 0 samples: array([], dtype=float64)

How can i solve it? Thanks