aptd crashed with AttributeError in _inline_callbacks(): 'NoneType' object has no attribute 'send'

[dino99]

Precise i386 b2

was logged as gnome-classic, and have installed gnome-shell. Then i've logged out and logged with gnome-shell. Then found this crash logged.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: aptdaemon 0.43+bzr805-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu1
Architecture: i386
Date: Wed Apr 11 11:23:36 2012
ExecutablePath: /usr/sbin/aptd
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/sbin/aptd
ProcCwd: /
ProcEnviron:

PythonArgs: ['/usr/sbin/aptd']
SourcePackage: aptdaemon
Title: aptd crashed with AttributeError in _inline_callbacks(): 'NoneType' object has no attribute 'send'
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 475, in _inline_callbacks
     result = gen.send(result)
 AttributeError: 'NoneType' object has no attribute 'send'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: admin audio avahi avahi-autoipd crontab debian-tor fuse haldaemon klog libuuid lpadmin messagebus mythtv plugdev polkituser pulse root ssh ssl-cert syslog users voice

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #971748, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.