deluged installed with error now Package Manager fails

[thomas l konefal]

... deluged installed with error ...
sudo apt install ./*.deb
deluge-common : Depends: python-twisted-core but it is not installable
E: Unable to correct problems, you have held broken packages.

... failed to remove deluged ...
sudo apt-get remove deluged
Reading package lists... Done
E: Unable to parse package file /etc/apt/preferences.d/pin-deluge (1)

... sudo apt-get update executes, but sudo apt-get upgrade does not ...
sudo apt-get upgrade
Reading package lists... Done
E: Unable to parse package file /etc/apt/preferences.d/pin-deluge (1)

.. red icon with white horizontal dash in toolbar ...
DIALOG BOX an error occurred, please run Package Manager from the right-click menu or apt-get in terminal to see what is wrong. The error message was: 'Error: Opening the cache (E:Unable to parse package file /etc/apt/preferences.d/pin-deluge (1))'. This usually means that your installed packages have unmet dependencies.

Show updates.................Nothing happens

Install all updates..........Failed to load package list. This is a serious problem.

Check for updates............Failed to load package list. This is a serious problem.

Start package manager........1) DIALOG BOX authentication required

.............................2) DIALOG BOX an error occurred
................................E:Unable to parse package file /etc/apt/preferences.d/pin-deluge (1)
................................E: _cache->open() failed, please report.

........................................................................
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.3 LTS
Release: 20.04
Codename: focal
........................................................................
DELL Latitude E6420 laptop
........................................................................

[lotuspsychje (lotuspsychje)]

Thank you for reporting this bug and make Ubuntu better!

could you please run: apport-collect 1981510 from a terminal
so relevant system info gets collected into your existing bug
and the developers can help debug you better

Thank you!

[thomas l konefal (tlawrencek)]

Wed 13 Jul 2022 03:52:03 PM PDT
e6420@Latitude-E6420:~/deluge$ sudo apport-collect 1981510
[sudo] password for e6420:
Please open this authorization page:
 (https://launchpad.net/+authorize-token?oauth_token=JQv9twRM1hfbsvZjrnnL&allow_permission=DESKTOP_INTEGRATION)
in your browser. Use your browser to authorize
this program to access Launchpad on your behalf.
Press Enter after authorizing in your browser.

Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 597, in <module>
    app.run_argv()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 716, in run_argv
    return self.run_update_report()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 601, in run_update_report
    apport.packaging.get_version(p)
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 163, in get_version
    pkg = self._apt_pkg(package)
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 156, in _apt_pkg
    return self._cache()[package]
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 121, in _cache
    self._apt_cache = apt.Cache(progress, rootdir='/')
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 170, in __init__
    self.open(progress)
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 232, in open
    self._cache = apt_pkg.Cache(progress)
apt_pkg.Error: E:Unable to parse package file /etc/apt/preferences.d/pin-deluge (1)

e6420@Latitude-E6420:~/deluge$ date
Wed 13 Jul 2022 04:17:49 PM PDT
________________________________
From: <email address hidden> <email address hidden> on behalf of lotuspsychje <email address hidden>
Sent: July 13, 2022 2:00 AM
To: <email address hidden> <email address hidden>
Subject: [Bug 1981510] Re: deluged installed with error now Package Manager fails

Thank you for reporting this bug and make Ubuntu better!

could you please run: apport-collect 1981510 from a terminal
so relevant system info gets collected into your existing bug
and the developers can help debug you better

Thank you!

--
You received this bug notification because you are subscribed to the bug
report.
https://bugs.launchpad.net/bugs/1981510

Title:
  deluged installed with error now Package Manager fails

Status in deluge package in Ubuntu:
  New

Bug description:
  ... deluged installed with error ...
  sudo apt install ./*.deb
  deluge-common : Depends: python-twisted-core but it is not installable
  E: Unable to correct problems, you have held broken packages.

  ... failed to remove deluged ...
  sudo apt-get remove deluged
  Reading package lists... Done
  E: Unable to parse package file /etc/apt/preferences.d/pin-deluge (1)

  ... sudo apt-get update executes, but sudo apt-get upgrade does not ...
  sudo apt-get upgrade
  Reading package lists... Done
  E: Unable to parse package file /etc/apt/preferences.d/pin-deluge (1)

  .. red icon with white horizontal dash in toolbar ...
  DIALOG BOX an error occurred, please run Package Manager from the right-click menu or apt-get in terminal to see what is wrong. The error message was: 'Error: Opening the cache (E:Unable to parse package file /etc/apt/preferences.d/pin-deluge (1))'. This usual...