Comment 3 for bug 682751

I got the same thing installing from a network share. I saved the Revenge of the Titans deb-file (humble indie bundle, humblebundle.com, games working on linux) to a network share and tried to install from there.

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 768, in simulate
    return self._simulate_helper(trans, status_path)
  File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 841, in _simulate_helper
    self._cache)
  File "/usr/lib/python2.6/dist-packages/apt/debfile.py", line 57, in __init__
    self.open(filename)
  File "/usr/lib/python2.6/dist-packages/apt/debfile.py", line 66, in open
    self._debfile = apt_inst.DebFile(open(self.filename))
IOError: [Errno 13] Permission denied: '/home/dutchy/.gvfs/dutchy on dragon/documents/RevengeOfTheTitans-HIB-amd64.deb'

I then copied the file to a local disk and got a different error, but no traceback:

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.

I have no idea if the deb package was meant for Ubuntu though.