Hello,
I solved this problem by workaround, which I found during my trial/error
attempts. I compiled and installed package from tgz, then I installed older
GUI packages from Ubuntu repository, and run commandline hp-setup for
install missing plugin. Now, I have "mixed" hplip on the computer, but I am
finally able printing and scanning on my old good HP Color LaserJet
CM2320mfp . I hope full featured and working version of hplip for Ubuntu
20.04 will be released soon.

Best regards,
Michal Kysel


po 12. 10. 2020 o 7:55 shivani mandora <email address hidden>
napísal(a):

> Hi,
>
> What is the output if you manually install the same package?
>
> And instead of quaitting, did you try continue the installation?
> What is the behaviour?
>
> Please let me know.
>
> ** Changed in: hplip
>        Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1898300
>
> Title:
>   Not working on Ubuntu 20.04
>
> Status in HPLIP:
>   Incomplete
>
> Bug description:
>   During installation, there are dependencies, which are not in the
>   repositories of 20.04 LTS, so script cannot install it. Installation
>   failed.
>
>   michal@michal-UN62:~$ ./hplip-3.20.9.run
>
>   ....
>   MISSING DEPENDENCIES
>   --------------------
>   Following dependencies are not installed. HPLIP will not work if all
> REQUIRED dependencies are not installed and some of the HPLIP features will
> not work if OPTIONAL dependencies are not installed.
>   Package-Name         Component            Required/Optional
>   pyqt5-dbus           gui_qt5              OPTIONAL
>   pyqt5                gui_qt5              REQUIRED
>   Do you want to install these missing dependencies (y=yes*, n=no, q=quit)
> ?y
>
>   INSTALL MISSING REQUIRED DEPENDENCIES
>   -------------------------------------
>   note: Installation of dependencies requires an active internet
> connection.
>   warning: Missing REQUIRED dependency: pyqt5 (PyQt 5- Qt interface for
> Python (for Qt version 4.x))
>
>
>   INSTALL MISSING OPTIONAL DEPENDENCIES
>   -------------------------------------
>   note: Installation of dependencies requires an active internet
> connection.
>   warning: Missing OPTIONAL dependency for option 'gui_qt5': pyqt5-dbus
> (PyQt 5 DBus - DBus Support for PyQt5)
>
>
>   CHECKING FOR NETWORK CONNECTION
>   -------------------------------
>   Network connection present.
>
>
>   RUNNING PRE-PACKAGE COMMANDS
>   ----------------------------
>   sudo dpkg --configure -a (Pre-depend step 1)
>   sudo apt-get install --yes --force-yes -f (Pre-depend step 2)
>   sudo apt-get update (Pre-depend step 3)
>   OK
>
>
>
>   DEPENDENCY AND CONFLICT RESOLUTION
>   ----------------------------------
>   Running 'sudo apt-get install --assume-yes gtk2-engines-pixbuf'
>   Please wait, this may take several minutes...
>   Running 'sudo apt-get install --assume-yes python-pyqt5'
>   Please wait, this may take several minutes...
>   error: Command failed. Re-try #1...
>   Running 'sudo apt-get install --assume-yes python-pyqt5'
>   Please wait, this may take several minutes...
>   error: Command failed. Re-try #2...
>   Running 'sudo apt-get install --assume-yes python-pyqt5'
>   Please wait, this may take several minutes...
>   error: Command failed. Re-try #3...
>   Running 'sudo apt-get install --assume-yes python-pyqt5'
>   Please wait, this may take several minutes...
>   error: Package install command failed with error code 100
>   Would you like to retry installing the missing package(s) (y=yes*, n=no,
> q=quit) ? q
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/hplip/+bug/1898300/+subscriptions
>