how do I uninstall xnview mp in ubuntu

[nat]

I am getting this as error

Failed to load the package list
This is a serious problem. Try again later. If this problem appears again, please report an error to the developers.
E:The package xnview needs to be reinstalled, but I can't find an archive for it.

[nat]

go it running again by reinstalling.

needed to do:
sudo dpkg -i XnViewMP-linux-x64.deb