aptdaemon update crashes

[Anatoly Gorokhoff]

My computer is running Ubuntu 10.10

Today (22 February 2011) I checked manually for updates using Ubuntu Update Manager. There were three items in the list of updates to install, one was aptdaemon and the other two were related to aptdaemon, but I don't remember the exact names. I remember that their name or description contained the word "python".

When I was installing those updates, the following error occured:

"An unpredictable error occured

There seems to be a programming error in aptdaemon, the software that allows you to install/remove software and to perform other package management related tasks. Please report this error at http:/launchpad.net/aptdaemon/+filebug and retry."

Details:

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 179, in _process_transaction
    self.commit_packages(*self.trans.packages)
  File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 227, in commit_packages
    self._commit_changes()
  File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 738, in _commit_changes
    if self.trans.cancelled:
  File "/usr/lib/python2.6/dist-packages/apt/deprecation.py", line 98, in deprecated_function
    return func(*args, **kwds)
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 427, in commit
    res = self.install_archives(pm, install_progress)
  File "/usr/lib/python2.6/dist-packages/apt/deprecation.py", line 98, in deprecated_function
    return func(*args, **kwds)
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 394, in install_archives
    install_progress.finish_update()
  File "/usr/lib/python2.6/dist-packages/aptdaemon/progress.py", line 264, in finish_update
    lock.status_lock.acquire()
  File "/usr/lib/python2.6/dist-packages/aptdaemon/lock.py", line 67, in acquire
    raise LockFailedError(self.path, process)
LockFailedError