An unhandled 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.

[darren selwonk]

File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 779, in simulate
    return self._simulate_helper(trans, status_path)
  File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 958, in _simulate_helper
    return depends, status, self._cache.required_download, \
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 218, in required_download
    pm.get_archives(fetcher, self._list, self._records)
SystemError: E:I wasn't able to locate file for the ttf-mscorefonts-installer package. This might mean you need to manually fix this package.

[Vinay Aggarwal (vinayagg91)]

SystemError: E:I wasn't able to locate file for the wine1.2 package. This might mean you need to manually fix this package.

[Braiam Peguero (braiampe)]

it seems that the file aren't downloaded correctly. Try againg. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.

[rowan (bloemhofster)]

FYI i got this error while installing Longene unified linux kernel for ubuntu. with the ubuntu software center system.

[Ocian Dan (ocian-dan)]

i've met this message when I tried to install Qt package, after I've stopped this process for the very first time since it became frozen ( maybe the internet connection failed).

[Sebastian Heinlein (glatzor)]

You cancelled an installation by either shuting down your computer or just closing the corresponding terminal.

Run the following command in a terminal:

sudo dpkg --configure -a