AttributeError: module ‘cv2‘ has no attribute ‘gapi_ wip_ gst_ GStreamerPipeline‘

When learning face recognition , The following error was reported ：

AttributeError: module 'cv2' has no attribute 'face'

Baidu after discovery face This function is not opencv It's in the library , Need to download

pip install opencv-contrib-python

Then he reported the error again

AttributeError: module 'cv2' has no attribute 'gapi_wip_gst_GStreamerPipeline'

Baidu search again found two solutions ：

1. uninstall opencv and contrib reinstall , Invalid after practice .

2. Keep only one of the two , I kept the latter , No longer an error , The code works .