I was doing a clean cygwin configure and was getting an error “/usr/lib/git-core/git-remote-https.exe: error while loading shared libraries: ?: cannot open shared object file: No such file or directory” when I tried to use git to clone the github xtuml/models repository.
I had the git and git-completion packages installed already but it wasn’t working.
I found that in order to use this method of cloning, I also needed to manually install libsasl2 and ca-certificates cygwin packages. These are not picked up as git package dependencies in cygwin, so they must be selected by hand.