Solved mixing the steps mentioned in this thread and the ones in this one: https://sourceforge.net/p/pacmanager/bugs/264/ The short version: 1) tried: a) sudo apt-get install libvte-dev --> error still present 2) tried a) sudo cpan b) install Gnome2::Vte --> error still present 3)tried: a) sudo cp /usr/local/lib/x86_64-linux-gnu/perl/5.24.1/auto/Gnome2/Vte/Vte.so /opt/pac/lib/ex/vte64/auto/Gnome2/Vte/Vte.so --> error gone. PAC works like a charm again. Hope this helps.