主要介绍了Ubuntu18.04下解决Qt出现qt.qpa.plugin:Could not load the Qt platform plugin “xcb“问题,本文给大家分享解决方案，需要的朋友可以参考下

问题描述 安装Qt5.15.0后，在运行测试用例时弹出错误： 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