On Wednesday, July 11, 2018 at 2:51:12 AM UTC-4, mig wrote
Did so and then (since I consciously do NOT use sudo on my system - it's an avoidable security risk imvho) installed the package this way...
and got this when I looked at the VDH "ABOUT" panel:
Success! Thanks, my friend. Looks like we're in business now. Will look deeper into the GDebi glitch when can, and report results when found. For once, Yours Truly is happily "boggled".
All in good time... Again, thanks for your astute tip! And that is all. 0{;-)o[