（已解决）Ubuntu运行pyqt和opencv程序时候出现qt.qpa.plugin: Could not load the Qt platform plugin “xcb“

在unbuntu下运行pyqt和opencv库的程序报错：
 

QObject::moveToThread: Current thread (0x1b21ba0) is not the object's thread (0x1e47870).
Cannot move to target thread (0x1b21ba0)

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/zlzk/anaconda3/envs/ros/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.

在网上找了很多方法，卸载库，安装库，甚至重新创建虚拟环境，都没用，焦头烂额，后来找到了一个
外网的博主的方法，运行，一秒解决问题！

首先将opencv-python卸载，这里的原因应该是pyqt与opencv-python的一些兼容性问题

pip uninstall opencv-python

然后安装 opencv-python-headless 记得换源，这里我使用的是清华源

pip install opencv-python-headless -i https://pypi.tuna.tsinghua.edu.cn/simple

最后是安装与报错内容xcb相关的库

sudo apt-get install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev

如果按照此方法未解决问题，可以去原网站看看还有没有其他解决方案。

网站如下：
https://github.com/NVlabs/instant-ngp/discussions/300
https://stackoverflow.com/questions/52337870/python-opencv-error-current-thread-is-not-the-objects-thread/72090539#72090539