Error when running example code

[Jefry-nolastname]

that's the only error message i got so i don't know what is the problem. when i searched the error code, someone suggest checking for missing dll but i dont know how. i have reinstalling gcc and dlib on msys2 multiple times but the error still there.
Please help

[Jefry-nolastname]

anyway...,
i accidentally solved the "i dont know what's causing the error" by trying to "go build" instead of "go run" and opening the .exe and the error message shows up.
"the procedure entry point inflatevalidate could not be located libpng16-16 dll"
then i found this msys2/MINGW-packages#813 (comment) .
After copying dll files (zlib1 and libpng16-16), the error went away.

I'm bald now and closing this issue.