Edson Analista <edson@openmailbox.org> writes:
> I'm trying to Upgrade PostgreSQL to 9.4 9.5 in Debian 8, I am getting
> the below error, what could be wrong?
I think your problem is that you're using fancy quotes instead of plain
ASCII single quotes in your pg_upgrade command line. Those are getting
taken as arguments, not quotes.
regards, tom lane