Setting top to                           : /build/kupfer/src/kupfer-321 
Setting out to                           : /build/kupfer/src/kupfer-321/build 
Checking for program 'python'            : /usr/bin/python3 
Checking for python version >= 3.5.0     : 3.10.1 
Checking for program 'msgfmt'            : /usr/bin/msgfmt 
Checking for program 'perl'              : /usr/bin/perl 
Checking for program 'intltool-merge'    : /usr/bin/intltool-merge 
Checking for program 'msgfmt'            : /usr/bin/msgfmt 
Checking for program 'itstool'           : /usr/bin/itstool 
Installing python modules into: /usr/share/kupfer 
Checking for program 'rst2man'           : /usr/bin/rst2man 
Checking for python module 'gi.repository.Gtk' : not found 
Could not find the python module 'gi.repository.Gtk'
(complete log in /build/kupfer/src/kupfer-321/build/config.log)
==> ERROR: A failure occurred in build().
    Aborting...