update-manager crashed with json.decoder.JSONDecodeError in raw_decode(): Expecting value: line 1 column 1 (char 0)

[Brian Bogdan]

Description: Ubuntu Lunar Lobster (development branch)
Release: 23.04

Got the error message whilst running sudo apt update. I think it appeared while this was on the bottom of the terminal window:

lintian_2.116.1ubuntu3_all.deb

It did not seem to affect the updating process.

ProblemType: Crash
DistroRelease: Ubuntu 23.04
Package: update-manager 1:22.10.5
ProcVersionSignature: Ubuntu 5.19.0-21.21-generic 5.19.7
Uname: Linux 5.19.0-21-generic x86_64
ApportVersion: 2.24.0-0ubuntu2
Aptdaemon:

Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: MATE
Date: Wed Jan 25 06:00:40 2023
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'launch-count' b'2'
 b'com.ubuntu.update-manager' b'launch-time' b'int64 1674648036'
InstallationDate: Installed on 2023-01-14 (12 days ago)
InstallationMedia: Ubuntu-MATE 23.04 "Lunar Lobster" - Alpha amd64 (20221204)
InterpreterPath: /usr/bin/python3.10
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
Python3Details: /usr/bin/python3.10, Python 3.10.9, python3-minimal, 3.10.6-1ubuntu1
PythonArgs: ['/usr/bin/update-manager', '--no-update', '--no-focus-on-map']
PythonDetails: N/A
SourcePackage: update-manager
Title: update-manager crashed with json.decoder.JSONDecodeError in raw_decode(): Expecting value: line 1 column 1 (char 0)
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.