OS - Ubuntu 18.04.4 LTS; python3; kivy 1.11.1;
cython - 0.29.9 (as recommended for kivy 1.11.1, but also tried the latest version at today's date)
When I executed buildozer -v android debug, many errors came but were sorted out with the blessings of Google search. But this took me almost 3 days and I'm still stuck. I've captured screenshots for detailed description but I guess the problem is with cython or tls/ssl module.