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

一、问题描述

具体报错如下：

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

后来通过debug，定位到是opencv中使用cv2.imshow()的问题，于是LZ猜测可能是opencv的问题，每次找bug都像在破案一样。

二、解决方法

说实话这个问题LZ之前没有碰到过，也只有满世界百度和google，但是发现方法都不work，后面偶然间发现一个博客说可能是opencv的一个bug，于是LZ就重新pip install了opencv

(CenterTrack) root@70e7a5ca0a8d:/# pip install opencv-python==4.1.0.25
Collecting opencv-python==4.1.0.25Downloading opencv_python-4.1.0.25-cp36-cp36m-manylinux1_x86_64.whl (26.6 MB)|################################| 26.6 MB 146 kB/s
Requirement already satisfied: numpy>=1.11.3 in /root/anaconda3/envs/CenterTrack/lib/python3.6/site-packages (from opencv-python==4.1.0.25) (1.19.2)
Installing collected packages: opencv-pythonAttempting uninstall: opencv-pythonFound existing installation: opencv-python 4.4.0.44Uninstalling opencv-python-4.4.0.44:Successfully uninstalled opencv-python-4.4.0.44

结果问题解决，其他安装依赖库的方法也都尝试了，但是并没有解决LZ的问题，所以就不写在博客里了，并且每个人遇到相同的报错，原因也有可能不一样，所以多多尝试才可以啊。

LZ现在的梦想就是身体健康，万事如意，哈哈哈哈哈，不知道为啥突然想说这个。。。

三、参考链接：

https://stackoverflow.com/questions/60032540/opencv-cv2-imshow-is-not-working-because-of-the-qt

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

一、问题描述

二、解决方法

三、参考链接：

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