Can't Install Qt6 on CentOs Realm 9

[KlaarKy]

Hello,

I created a virtual machine using VirtualBox 7.0.14
I installed CentOS Realm 9 on it and Qt 6 open source with online installer.
But when I tried to launch qt creator nothing happened and when I lauched it with command line I had this error :
Warning: Ignoring WAYLAND_DISPLAY on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
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, vkkhrdisplay, vnc, wayland-egl, wayland, xcb.

Any idea ?

i tried to update xcb dependencies with the following command but it didn't solve my problem :
yum install libxcb libxcb-devel libXrender libXrender-devel xcb-util-wm xcb-util-wm-devel xcb-util xcb-util-devel xcb-util-image xcb-util-image-devel xcb-util-keysyms xcb-util-keysyms-devel

Thank you for your help

[cristian-adam]

You are missing a library required by the xcb QPA plugin.

Try to do a ldd /path/to/xcb.so to find out what's missing. Or strace.

[KlaarKy]

I was missing libxcb-cursor.so
I installed it with the following command : sudo yum -y install xcb-util-cursor

My problem is solved. Thank you for your help ;)

[KlaarKy]

A best solution is to use these command lines :
sudo dnf groupinstall "Development Tools"
sudo dnf install mesa-libGL-devel