Comment 19 for bug 690942

I,too,have this kind of problem.But the software centre worked quite well hours before.I was updating some software,among these was one software called Ultra Edit,and it just could not finish installing.And after I reboot my computer(forcibly),I can't update any software any more.I have no idea what to do.

these are the report:
Traceback (most recent call last):
  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 libboost-regex1.42.0 package. This might mean you need to manually fix this package.