Mac Problem fork/exec /usr/bin/osascript: invalid argument

[wudi1940]

I just run demo, and err like this "fork/exec /usr/bin/osascript: invalid argument" occurred
I don’t understand why

my demo is like :

msg := string(buf)
err := notify.Push("You have new Msg", msg, "/home/user/icon.png", notificator.UR_NORMAL)