adding Keyboard symbol

I am trying to add a keyboard symbol 'akd' and have copied the same to the directory /etc/X11/xkb/symbols and created the symbols.dir using the command "xkbcomp -lhlpR '*' -o ../symbols.dir" and it genetated the symbols.dir file contains the info "h-p----- am------ akd (basic) " When tried to set the keyboard map 'setxkbmap akd -option grp:alt_shift_toggle', the following error appears 'Error loading new keyboard descrition' am i missing any file or any data required by the keyboad symbol?? pls help me regards sankar