GTK enable issue in imx8m mini

[nalli]

hi, I want to run GTK application on imx8m mini but if i run opencv application on imx, i got error like this

what():  OpenCV(4.5.4) /usr/src/debug/opencv/4.5.4.imx-r0/git/modules/highgui/src/window_gtk.cpp:635: error: (-2:Unspecified error) Can't initialize GTK backend in function 'cvInitSystem',.

could you please help me to how will enable gtk in imx8m mini. 

[Zhiming_Liu]

Which kind  of yocto bsp you are using? The full and multimedia images contains gtk.