Cant set my xkb's xkeymap with xkbcomp

[aprekates]

Hi. I've have Debian Buster ,xorg (1:7.7+19).

Trying to change xkb's xkeymap i tried :

$ cd /home/foouser/.config/xkb

$ setxkbmap  -model hhk -layout us -print > mapus

xkb_keymap {
         xkb_keycodes  { include "evdev+aliases(qwerty)" };
         xkb_types     { include "complete"      };
         xkb_compat    { include "complete+ledscroll(group_lock)"        };
         xkb_symbols   { include 
"pc+us+inet(evdev)+group(ctrl_shift_toggle)"    };
         xkb_geometry  { include "hhk(basic)"    };
};

Then supposedly i make my changes to mapus and make my changes active with:

$ xkbcomp -I$HOME/.config/xkb ~/.config/xkb/mapus  $DISPLAY

.....

Warning:          Key <OUTP> not found in evdev+aliases(qwerty) keycodes
                   Symbols ignored

...

Warning:          No symbols defined for <I149> (keycode 149)
....

But testing with  $ setxkbmap  -print

i see that my current xkeymap hasnt change . But i can change it with 
setxkbmap.

Why xkbcomp doest seem to work?

Alexandros