Many thanks, chadbsd, for your prompt and helpfully spelt out reply. I updated the package repository and attempted to force reinstallation of libp11-kit and libgck-1 but that simply returned: pkg: No packages available to install matching 'libp11-kit' have been found in the repositories pkg: No pac...

Yesterday I upgraded my GhostBSD system (# pkg upgrade) and it failed because of a conflict between two versions of Ghostscript (9 vs. 10). I deinstalled Ghostscript 9, which also removed several other packages/programs, and was then able to complete the upgrade. Finally, I reinstalled the packages/...