Is this still a work in progress?
From: Luis Finotti <firstname.lastname@example.org>
If there is log information on what was fixed, that might be helpful, could
be a binary corrupted somewhere.
Taking into account there was already some clearing of some apt related stuff
elsewhere in the thread....
If it was me, my next steps would be to clean some old stuff out and see if using
dpkg to install something will work.
As root something like......
apt-get -d upgrade
dpkg -i *tiff*
If the packages fail to install then more investigation is needed to get that sorted.
If installation is successful then I might try
apt-get --reinstall install <the same packages that dpkg installed successfully>