*** This bug is a duplicate of bug 1898904 *** https://bugs.launchpad.net/bugs/1898904
Public bug reported: I can't start Calibre anymore $ lsb_release -rd Description: Ubuntu 20.04.1 LTS Release: 20.04 ~$ apt-cache policy calibre calibre: Installato: 4.99.4+dfsg+really4.12.0-1build1 Candidato: 4.99.4+dfsg+really4.12.0-1build1 Tabella versione: *** 4.99.4+dfsg+really4.12.0-1build1 500 500 http://it.archive.ubuntu.com/ubuntu focal/universe amd64 Packages 500 http://it.archive.ubuntu.com/ubuntu focal/universe i386 Packages 100 /var/lib/dpkg/status I expected to open the program normally The program crashes This is what if I boot from terminal: ~$ calibre Traceback (most recent call last): File "/usr/bin/calibre", line 20, in <module> sys.exit(calibre()) File "/usr/lib/calibre/calibre/gui_launch.py", line 73, in calibre main(args) File "/usr/lib/calibre/calibre/gui2/main.py", line 543, in main listener = create_listener() File "/usr/lib/calibre/calibre/gui2/main.py", line 514, in create_listener return Listener(address=gui_socket_address()) File "/usr/lib/calibre/calibre/utils/ipc/server.py", line 110, in __init__ self._listener._unlink.cancel() AttributeError: 'NoneType' object has no attribute 'cancel' ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: calibre 4.99.4+dfsg+really4.12.0-1build1 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 Uname: Linux 5.4.0-58-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: Unity:Unity7:ubuntu Date: Fri Dec 25 10:23:54 2020 InstallationDate: Installed on 2020-05-17 (221 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) PackageArchitecture: all SourcePackage: calibre UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: calibre (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Edubuntu Bugsquad, which is subscribed to calibre in Ubuntu. https://bugs.launchpad.net/bugs/1909311 Title: Calibre crashes on startup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/calibre/+bug/1909311/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~edubuntu-bugs Post to : edubuntu-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~edubuntu-bugs More help : https://help.launchpad.net/ListHelp