Comment 7 for bug 1011780

Some additional information from duplicate bug 1011948:

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I am having problems installing the Humble Bundle via software-center.

I just installed Bastion, and I am now trying to install Psychonauts. The install process seems to hang.

I started software-center from a console to debug. I am seeing an error like the following:

2012-06-12 01:43:58,849 - softwarecenter.fixme - WARNING - logs to the root logger: '('/usr/lib/python2.7/dist-packages/dbus/connection.py', 234, 'maybe_handle_message')'
2012-06-12 01:43:58,848 - dbus.connection - ERROR - Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 230, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 634, in _on_property_changed
    self.emit("progress-details-changed", *value)
TypeError: could not convert type dbus.Int64 to (null) required for parameter 3
2012-06-12 01:43:58,850 - softwarecenter.fixme - WARNING - logs to the root logger: '('/usr/lib/python2.7/dist-packages/dbus/connection.py', 234, 'maybe_handle_message')'
2012-06-12 01:43:58,850 - dbus.connection - ERROR - Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 230, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 612, in _on_property_changed
    self.emit("progress-download-changed", *value)
TypeError: could not convert type dbus.Int64 to (null) required for parameter 3

It seems to be printed every second. In software-center, the GUI says "Installing...." but the Progress button does not show any installs in progress (see screenshot).

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: software-center 5.2.2.2