From: Jens Reyer > Clearly something wrong here, buster/sid mixed with stable. I'm closing > the bug because mixed systems are not supported.
This is a common misconception about Debian. Mixed suites are a supported, although not very well advertised, feature. > To downgrade a package directly e.g. > sudo apt install libtinfo5:i386=6.0+20161126-1+deb9u1 > should work. If you want to stick with your mixed suite setup, you can add buster sources to apt, then install buster's wine and all of its dependencies on a stretch base system: $ apt install wine -t testing Best wishes, Mike