由于Qt6.22太新,我不得不重新安装了Qt,同时安装了Qt6.22和Qt5.15.2,安装完毕后使用Qt6.22是没有问题的,但使用Qt5.15.2运行程序时,提示如下错误
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 problem.
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.
搜索了不少资料后,该问题可使安装libxcb-xinerama0来解决
https://forum.qt.io/topic/93247/qt-qpa-plugin-could-not-load-the-qt-platform-plugin-xcb-in-even-though-it-was-found
sudo apt-get install libxcb-xinerama0
另外,有在uBuntu18.04下通过在线方式安装Qt5.15.2成功的人吗,我安装完毕后,运行qtcreater提示GLib需要2.28,但uBuntu18.04内的版本为2.27,在gnu上下载源码安装(大概需要安装4个依赖包)最后还是没有把GLib2.28安装成功,有成功安装的请留言给我或发我邮箱 sos_lxb@sina.com。
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