我编写了一个使用pyqt5和opencv-python从摄像头捕获视频的程序，但当我运行程序时，出现以下错误:
objc[35814]: Class QCocoaPageLayoutDelegate is implemented in both /Users/username/python_env/py3env/lib/python3.5/site-packages/cv2/.dylibs/QtGui (0x11439c5c0) and /Users/username/python_env/py3env/lib/python3.5/site-packages/PyQt5/Qt/lib/QtPrintSupport.framework/Versions/5/QtPrintSupport (0x11576c468). One of the two will be used. Which one is undefined.
objc[35814]: Class QCocoaPrintPanelDelegate is implemented in both /Users/username/python_env/py3env/lib/python3.5/site-packages/cv2/.dylibs/QtGui (0x11439c638) and /Users/username/python_env/py3env/lib/python3.5/site-packages/PyQt5/Qt/lib/QtPrintSupport.framework/Versions/5/QtPrintSupport (0x11576c4e0). One of the two will be used. Which one is undefined.
objc[35814]: Class QCocoaApplicationDelegate is implemented in both /Users/username/python_env/py3env/lib/python3.5/site-packages/cv2/.dylibs/QtGui (0x11439c340) and /Users/username/python_env/py3env/lib/python3.5/site-packages/PyQt5/Qt/plugins/platforms/libqcocoa.dylib (0x117b03b88). One of the two will be used. Which one is undefined.
objc[35814]: Class QNSApplication is implemented in both /Users/username/python_env/py3env/lib/python3.5/site-packages/cv2/.dylibs/QtGui (0x11439c2f0) and /Users/username/python_env/py3env/lib/python3.5/site-packages/PyQt5/Qt/plugins/platforms/libqcocoa.dylib (0x117b03bd8). One of the two will be used. Which one is undefined.
objc[35814]: Class QCocoaMenuLoader is implemented in both /Users/username/python_env/py3env/lib/python3.5/site-packages/cv2/.dylibs/QtGui (0x11439c2a0) and /Users/username/python_env/py3env/lib/python3.5/site-packages/PyQt5/Qt/plugins/platforms/libqcocoa.dylib (0x117b03d18). One of the two will be used. Which one is undefined.
objc[35814]: Class QNSImageView is implemented in both /Users/username/python_env/py3env/lib/python3.5/site-packages/cv2/.dylibs/QtGui (0x11439c660) and /Users/username/python_env/py3env/lib/python3.5/site-packages/PyQt5/Qt/plugins/platforms/libqcocoa.dylib (0x117b03e08). One of the two will be used. Which one is undefined.
objc[35814]: Class QNSStatusItem is implemented in both /Users/username/python_env/py3env/lib/python3.5/site-packages/cv2/.dylibs/QtGui (0x11439c6b0) and /Users/username/python_env/py3env/lib/python3.5/site-packages/PyQt5/Qt/plugins/platforms/libqcocoa.dylib (0x117b03e58). One of the two will be used. Which one is undefined.
objc[35814]: Class QNSOpenSavePanelDelegate is implemented in both /Users/username/python_env/py3env/lib/python3.5/site-packages/cv2/.dylibs/QtGui (0x11439c480) and /Users/username/python_env/py3env/lib/python3.5/site-packages/PyQt5/Qt/plugins/platforms/libqcocoa.dylib (0x117b03ef8). One of the two will be used. Which one is undefined.
cv2和pyqt5冲突。
操作系统是macOS High Sierra，Python的版本是3.5.2，在venv中创建了一个虚拟环境，并在其中执行了"pip install pyqt5"、"pip install opencv-python"命令，安装了这两个库。
在ubuntu和windows上它可以正常工作，没有错误，但只有在mac上无法正常工作。
我应该如何解决这个错误？