What is supposed to be going on with postgresql?
The error reports
The following packages will be REMOVED:
postgresql-9.5 postgresql-client-9.5 postgresql-contrib-9.5
But if I do apt-get update to see what it wants to do, it wants to install postgresql-9.3 postgresql-client-9.3 postgresql-contrib-9.3
So which version is supposed to be installed? Why would 9.5 be installed already and why would it want to remove it when upgrade wants to install 9.3?