The following packages have unmet dependencies:
 xserver-xorg-input-xwiimote : Depends: xserver-xorg-core (>= 2:1.17.99.902)
E: Unable to correct problems, you have held broken packages.
derek@derek-Inspiron-5577:~$ apt show xserver-xorg-core
Package: xserver-xorg-core
Version: 2:1.18.4-0ubuntu0.3