报错描述

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

解决思路

发现是Qt加载插件出现问题，通过设置QT_DEBUG_PLUGINS=1，可以查看Qt的插件加载信息
可以在你运行你的Python可执行文件之前先在终端执行下面命令设置环境变量：：

export QT_DEBUG_PLUGINS=1

后再执行你的可执行文件，这个时候就会列出详细的报错原因。再次运行程序时，会打印出很多信息，重点是最后一段

Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/home/q512/anaconda3/envs/huqiao/bin/platforms" ...
Cannot load library /home/q512/anaconda3/envs/huqiao/lib/python3.6/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so: (libxcb-xinerama.so.0: 无法打开共享对象文件: 没有那个文件或目录)
QLibraryPrivate::loadPlugin failed on "/home/q512/anaconda3/envs/huqiao/lib/python3.6/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so" : "Cannot load library /home/q512/anaconda3/envs/huqiao/lib/python3.6/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so: (libxcb-xinerama.so.0: 无法打开共享对象文件: 没有那个文件或目录)"
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" 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: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.

它提示无法加载libqxcb.so，原因是libxcb-xinerama.so.0: 无法打开共享对象文件: 没有那个文件或目录，也就是说libxcb-xinerama.so.0共享库丢失，导致无法加载libqxcb.so。通过ldd指令查看libqxcb.so的动态链接库，可以看到libxcb-xinerama.so.0 => not found：

参考链接:
link.
link.

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报错---qt.qpa.plugin

插件错误---qt.qpa.plugin

报错描述

解决思路

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