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

QObject::moveToThread: Current thread (0x563e8bd48ed0) is not the object's thread (0x563e8ced9cf0).
Cannot move to target thread (0x563e8bd48ed0)

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/zxq/anaconda3/envs/open3d/lib/python3.9/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, eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl.

错误信息中提到“"/home/zxq/anaconda3/envs/open3d/lib/python3.9/site-packages/cv2/qt/plugins”

解决办法1:删除上面目录中的libqxcb.so文件即可

qt.qpa.plugin:Could not load the Qt platform plugin “xcb“_第1张图片

解决办法2:尝试过的另一种解决办法,卸载python3.9,安装python3.7

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