我在其應用程式來源資料夾的終端機中測試了故障以查看錯誤。問題是，重新安裝Qt需要什麼？因為該應用程式已清除並重新安裝了兩次。
root@LMC203DT:/usr/bin# luckybackup-pkexec
qt.qpa.xcb: could not connect to display
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, xcb.
Aborted (core dumped)
root@LMC203DT:/usr/bin#