Get error with webcam demo

[Stephenfang51]

Sir,

when I run the f.train(). it shows below How can I solve it?

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ValueError Traceback (most recent call last)

in ----> 1 f.train() in train(self) 73 embs.append(embs_) 74 ---> 75 embs = np.concatenate(embs) 76 le = LabelEncoder().fit(labels) 77 y = le.transform(labels) ValueError: need at least one array to concatenate

[abhishekgupte94]

The problem is that the embs array is empty. Load it with face embeddings