网上试了一个人脸识别的程序，结果显示了以下的错误：
Traceback (most recent call last): File "D:\face_2\yes.py", line 56, in <module> faces, labels = prepare_training_data("training_data") File "D:\face_2\yes.py", line 45, in prepare_training_data face, rect = detect_face(image) File "D:\face_2\yes.py", line 12, in detect_face faces = face_cascade.detectMultiScale(gray, scaleFactor=1.2, minNeighbors=5)cv2.error: OpenCV(4.2.0) D:\Build\OpenCV\opencv-4.2.0\modules\objdetect\src\cascadedetect.cpp:1689: error: (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::detectMultiScale'
有大佬知道是怎么回事吗？
Traceback (most recent call last): File "D:\face_2\yes.py", line 56, in <module> faces, labels = prepare_training_data("training_data") File "D:\face_2\yes.py", line 45, in prepare_training_data face, rect = detect_face(image) File "D:\face_2\yes.py", line 12, in detect_face faces = face_cascade.detectMultiScale(gray, scaleFactor=1.2, minNeighbors=5)cv2.error: OpenCV(4.2.0) D:\Build\OpenCV\opencv-4.2.0\modules\objdetect\src\cascadedetect.cpp:1689: error: (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::detectMultiScale'
有大佬知道是怎么回事吗？
官网那个很多模块都没有
