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PROCESSOR-SDK-AM62X: AM62X qt application error

Part Number: PROCESSOR-SDK-AM62X

Hi , TI engineer .
 sdk :ti-processor-sdk-linux-am62xx-evm-08.06.00.42  
ddr :512M .

when I run qt applicaiton .it print below informaiton :

[root@ok6254/usr/share/qt5/examples/opengl/cube]#./cube
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" 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.

Aborted (core dumped)
[root@ok6254/usr/share/qt5/examples/opengl/cube]#  

could you give me some advices ? Thank you very much!