Traceback (most recent call last):
File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 769, in simulate
return self._simulate_helper(trans, status_path)
File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 948, 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.