qt.qpa.plugin: Could not load the Qt platform plugin “xcb“ in ““ even though it was found.This appl

今天在Linux系统卸载了Qt 5.9, 然后安装Qt 5.12, 结果运行qtcreator时,报如下错:

后来查阅才知道, 是libxcb-xinerama0没有安装, 在终端输入以下命令即可解决问题:

sudo apt-get install libxcb-xinerama0

感谢链接中的博主:

https://blog.csdn.net/u012308586/article/details/108509503