help pls

[Hamzamrad]

python3 recognize_video.py
Loading Face Detector...
Loading Face Recognizer...
Traceback (most recent call last):
File "/home/hamza/face-recognition-using-opencv/recognize_video.py", line 22, in
recognizer = pickle.loads(open("output/recognizer.pickle", "rb").read())
ModuleNotFoundError: No module named 'sklearn.svm.classes'