First, i do not speak english well sry.
i want to make 'Custom Image'
I took the example and followed it.
example : https://wiki.infomir.eu/eng/stb-webkit/for-developers/customization-and-image-making-for-embedded-portal/image-making-from-0-2-18-and-upper/customimage-prepearing-making-for-mag-250
Everything was going well !!
but, something problems tormented me
There is an error in the red box of the picture.
If you execute the above command, an error occurs.
How do I fix it?