Same problem. Just upgraded to Ubuntu 14.04 and tried to use mcomix and it crashed. Here's the error message I get, looks the same as the one by Turgon.
03:04:21 WARNING: Non-supported archive format: xxx.cbr Traceback (most recent call last): File "/usr/bin/mcomix", line 9, in <module> load_entry_point('mcomix==1.00', 'console_scripts', 'mcomix')() File "/usr/lib/python2.7/dist-packages/mcomix/run.py", line 200, in run open_path = open_path, open_page = open_page) File "/usr/lib/python2.7/dist-packages/mcomix/main.py", line 71, in __init__ self.filehandler = file_handler.FileHandler(self) File "/usr/lib/python2.7/dist-packages/mcomix/file_handler.py", line 64, in __init__ self.last_read_page = last_read_page.LastReadPage(backend.LibraryBackend()) File "/usr/lib/python2.7/dist-packages/mcomix/library/backend.py", line 646, in LibraryBackend _backend = _LibraryBackend() File "/usr/lib/python2.7/dist-packages/mcomix/library/backend.py", line 58, in __init__ self._upgrade_database(version, _LibraryBackend.DB_VERSION) File "/usr/lib/python2.7/dist-packages/mcomix/library/backend.py", line 587, in _upgrade_database lastread.migrate_database_to_library(COLLECTION_RECENT) File "/usr/lib/python2.7/dist-packages/mcomix/last_read_page.py", line 196, in migrate_database_to_library book.get_backend = lambda: self.backend AttributeError: 'NoneType' object has no attribute 'get_backend' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1309876 Title: Comix crashes after update to 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mcomix/+bug/1309876/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs