port index screwed???

[mouse07410 (Mouse)]

I don't know what's going on, or why. MacOS Mojave 10.14.6, everything current/latest/stable.

$ port info xz
Error: Port xz not found
$ sudo port upgrade gtk-doc
Warning: No port xz found in the index.
Warning: No port pkgconfig found in the index.
Error: Unable to open port: can't read "prefix": no such variable
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
$ 

Needless to say, sudo port sync && sudo port selfupdate succeeded:

$ sudo port selfupdate
--->  Updating MacPorts base sources using rsync
MacPorts base version 2.5.4 installed,
MacPorts base version 2.5.4 downloaded.
--->  Updating the ports tree
--->  MacPorts base is already the latest version

The ports tree has been updated. To upgrade your installed ports, you should run
  port upgrade outdated
$ 

sudo port rev-upgrade also did not complain.