qt.qpa.plugin: Could not load the Qt platform plugin “xcb“ in “***“

<>qt.qpa.plugin: Could not load the Qt platform plugin “xcb” in
“/home/yannqi/.local/lib/python3.8/site-packages/cv2/qt/plugins” even though it
was found.问题汇总

问题报错：
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in
"/home/yannqi/.local/lib/python3.8/site-packages/cv2/qt/plugins" even though it
was found. This application failed to start because no Qt platform plugin could
be initialized. Reinstalling the application may fix this problem. Available
platform plugins are: xcb(from
/home/yannqi/.local/lib/python3.8/site-packages/cv2/qt/plugins), xcb, eglfs,
linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland,
wayland-xcomposite-egl, wayland-xcomposite-glx, webgl.
问题解决方法汇总：

* 代码前加入如下片段，注意和原报错路径区分。解决博主问题。 envpath =
'/home/yannqi/.local/lib/python3.8/site-packages/cv2/qt/plugins/platform' os.
environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = envpath
*
通用解决方案。未解决博主问题，但评论区都说问题已解决的方案。
apt-get install libxcb-xinerama0

*
其它方案，有说解决，有说未解决
export QT_DEBUG_PLUGINS=1

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