Can't "Manage Languages" after reinstall (Linux Mint)

[ReaderGuy42]

I just did a reinstall of my OS (Linux Mint 20.3) and also reinstalled gImageReader. Even after I install the tesseract-ocr and tesseract-eng package from my Software Manager, I get the following error:

As far as I can tell the OCR'ing and output to PDF with overlay does work (not sure how well, my one test PDF seemed a bit off).

Any ideas on what I forgot? I assume I just missed something on the install.
Thanks!

[manisandro]

The error message really says it all - try installing Gnome Software or any other software management application shipping a PackageKit backend.

[ReaderGuy42]

OK, sorry, didn't realize PackageKit was actually the name of the thing. I've installed Gnome-packagekit and when I search for tesseract it shows lots of stuff - but I've already installed the language files for English. Now what?
Thanks!!

[manisandro]

You mean that you get the error dialog even if you installed gnome-software?

[ReaderGuy42]

That is correct. I have also rebooted the PC in the mean time but get the same error.

[FiableDotBiz]

I got a similar issue on Fedora 39 workstation. Gnome "Software" was installed, and launching "sudo dnf install PackageKit" gave me as answer that the package " PackageKit" was already installed, which left me perplexed. "sudo dnf install gnome-packagekit" eventually solved the problem. If gImageReader is aware of the desktop environment, it should be useful to adapt the message error so that non-geek users know precisely what to do.