Trouble recovering after re-installing CUPS

[Will Parsons]

I re-installing cups (after deleting cups-base, cups-client,
cups-image, and cups-pstoraster), but have lost hplip.  An attempt to
re-install it fails with:

===>   Registering installation for hplip-3.16.2
pkg-static: Unable to access file /usr/ports/print/hplip/work/stage/usr/local/etc/cups/pstotiff.convs: No such file or directory
pkg-static: Unable to access file /usr/ports/print/hplip/work/stage/usr/local/etc/cups/pstotiff.types: No such file or directory
*** [fake-pkg] Error code 74

% uname -a
FreeBSD anukis.local 9.3-RELEASE-p21 FreeBSD 9.3-RELEASE-p21 #0: Tue Jul 28 08:57:41 UTC 2015     root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  i386


How can I proceed to resolve this?